ngu phap tieng anh 10 unit 789

COMPOSED BY
THANH CUONG
PHONE
0915425170

ENGLISH 10
EXERCISE


Thanh Cuong – Gia su Can Tho

UNIT 7 (Review)
1. The present perfect (thì hiện tại hồn thành)
Cơng thức

(+) S + have/has + Ved/V3
(-)

S+ have/ has not+ Ved/V3

(?) Have/ has + S+ Ved/V3?
Cách dùng:
a. Diễn tả một hành động trong q khứ , còn kéo dài tới hiện tại và tương lai
Ex:

My friend Nam has lived in HCMC since 1998.
We have learned English for 7 years.

b. Một hành động vừa mới xảy ra
Ex:

I have just finished my homework

Lưu ý:
* SINCE: Chỉ mốc thời gian (2000, September, I last saw you, ..)
* FOR: Chỉ khoảng thời gian (3 months, a long time, ages, …)
Các trạng từ thường dùng: just (vừa mới), recently/lately (gần đây), ever (đã từng), never (chưa
bao giờ), yet (chưa), already (rồi), since (từ khi), for (khoảng).

Exercise
A. Chia động từ ở thì hiện tại hồn thành
1. There is no more cheese. I (eat)……………. it all, I’m afraid.
2. The bill isn’t right. They (make)………….. a mistake.
3. Don’t you want to see this programme? It ………….(start).
4. It’ll soon get warm in here. I (turn)……….. the heating on.
5. ………They (pay)…….. money for your mother?
6. Someone (take)………………. my bicycle.
7. Wait for few minutes, please! I (finish)……………. my dinner.
8. ………You ever (eat)………….. Sushi?
9. She (not/come)…………… here for a long time.
10. I (work) ………….. here for three years.
B. Chọn đáp án đúng

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Thanh Cuong – Gia su Can Tho

1. When ____________ the school?
A) have you joined

B) did you joined

C) did you join

D) have you ever joined

2. _____________ in England?
A) Did you ever worked

B) Have you ever worked

C) Worked you

D) Didn't you have worked

3. That's the best speech _________
B) I never heard

B) I didn't hear

C) I used to hear

D) I've ever heard

4. He's the most difficult housemate _____________________
A) I never dealt with.

B) I never had to deal with.

C) I've ever had to deal with.

D) I've never had to deal with

5. ______ to him last week.
A) I spoke

B) I've already spoken

C) I didn't spoke

D) I speaked

6. _____a contract last year and it is still valid.
A) We have signed

B) We signed

C) We haven't signed

D) We have sign

7. ______ from a business trip to France.
A) I come back

B) I came back

C) I never came back

D) I've just come back

8. Prices ________ in 1995 but then _____ in 1996.
A) rised _ falled

B) rose _ fell

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Thanh Cuong – Gia su Can Tho

C) have risen _ have fallen

D) rose _ have fallen

9. I can't believe that ________________ the news.
A) you haven't read

B) you didn't read

C) you don't read

D) you read not.

10. I __________ English for 5 years
A. Had studied

B. Have been studied

C. Have studied

D. Am studying

Unit 8. THE STORY OF MY VILLAGE
1. Vocabulary
Từ vựng

Phát âm

Nghĩa

atmosphere (n)

/ˈætməsfɪə(r)/

không khí

better (v)

/ˈbetə(r)/

cải thiện, làm cho tốt hơn

brick (n)

/brɪk/

gạch

bumper crop

vụ mùa bội thu

cash crop

cây trồng thương phẩm

crop (n)

/krɒp/

phương pháp canh tác

farming method
flooded (adj)

mùa màng

/ˈflʌdɪd/

ngập lụt

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Thanh Cuong – Gia su Can Tho

holiday resort

khu nghỉ, thành phố du lịch

last (v)

/lɑːst/

kéo dài

mud (n)

/mʌd/

bùn, đất ướt nhão

muddy (adj)

/ˈmʌdi/

lầy lội

raise (v)

/reɪz/

nâng lên

resurface (v)

/ˌriːˈsɜːfɪs/

trải lại (mặt đường)

shortage (n)

/ˈʃɔːtɪdʒ/

sự thiếu thốn

straw (n)

/strɔː/

rơm rạ

widen (v)

/ˈwaɪdn/

mở rộng

2. Câu điều kiện loại 1
a. Khái niệm
Câu điều kiện loại 1 còn có thể được gọi là câu điều kiện hiện tại có thể có thật. Ta sử dụng câu điều
kiện loại 1 để đặt ra một điều kiện có thể thực hiện được trong hiện tại và nêu kết quả có thể xảy ra.
b. Công thức
Đảo ngữ:

If + S + V (hiện tại), S + will + V (nguyên mẫu)
Should + S + V (hiện tại), S + will + V (nguyên mẫu)

Ví dụ:
If you come into my garden, my dog will bite you.

Should you come into my garden, my dog will bite you.
Exercise
A. Chọn đáp án đúng

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Thanh Cuong – Gia su Can Tho

1. If you ___________ my advice, you'll accept it.
a. will be taking
b. will take
c. are taking
d. take
3. If you _________, I'll tell Jagger that we need time to think it over.
a. want
b. are wanting
c. will want
d. would want
4. When he ____________ that, he'll be a bit impatient.
a. is hearing
b. will hear
c. would hear
d. hears
5. I'm sure that if I _____________ to him sweetly enough he'll hold on and not look elsewhere.
a. 'm talking
b. will talk
c. talk
d. would talk
6. If things are looking a bit dicey, I ____________ to you.

a. get back
b. 'll get back

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Thanh Cuong – Gia su Can Tho

c. would get back
d. am getting back
7. So, if I _________________ from you, I'll assume everything is fine.
a. don't hear
b. hear
c. am hearing
d. won't hear
8. I'll only call you if I _______________ there is a problem.
a. would think
b. will think
c. think
d. am thinking
B. Chia động từ trong ngoặc.
a.
1. If you (send)________ the letter today, it'll arrive tomorrow.
2. If you don't study, you (pass)______ the exam.
3. If it rains, we (stay)________ at home.
4. If it (be)_________ sunny, we'll go to the beach.
5. If that shop (be)________ closed, we'll go to another one.
6. If you (want)__________, we'll go to the park.
7. If Adam (arrive)_______ late, his father will be upset.
8. If you work hard, you (get)___________ a bonus.

9. If it isn't expensive, I (buy)___________ two.

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Thanh Cuong – Gia su Can Tho

10. If you (call)____________ me, I won't answer the phone.
b.
If I (study) _____________ , I (pass) _____________ the exams.
If the sun (shine) ____________, we (walk) _____________ to the town.
If he (have) __________ a temperature, he (see) ___________ the doctor.
If my friends (come) ___________, I (be) ______________ very happy.
If she (earn) ___________ a lot of money, she (fly) _____________ to New York.
If we (travel) ___________ to London, we (visit) _____________ the museums.
If you (wear) __________ sandals in the mountains, you (slip) __________ on the rocks.
If you (wear) __________ sandals in the mountains, you (slip) __________ on the rocks.
If Rita (forget) ___________ her homework, the teacher (give) _________ her a low mark.
If they (go) ________________ to the disco, they (listen) ___________ to loud music.
If you (wait) ____________ a minute, I (ask) ______________ my parents.
c.
If it (rain) ______________, the children (not go) ____________ for a walk.
If she (not read) ____________ the novel, she (not pass) ____________ the literature test.
If I (not argue) _______________ with my father, he (lend) _____________ me his motorbike.
If we (take) _____________ the bus, we (not arrive) __________ in time.
If Dick (not buy) ___________ the book, his friends (be) _____________ angry with him.
If Tom (not tidy up) ______________ his room, Victoria (not help) _______________ him with the
muffins.
If the boys (not play) ___________ football, the girls (not come) _______________ to the football
pitch.

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Thanh Cuong Gia su Can Tho

If you (eat) _____________ too much junk food, you (not lose) _______________ weight.

If I (not make) _______________ breakfast tomorrow morning, my girlfriend (not love)
_______________ me anymore.
If they (not hurry) ______________, they (not catch) _______________ the train.
If we meet at 9:30, we (to have) ___________ plenty of time.
If we (to send) _________ an invitation, our friends (to come) _________ to our party.
He (not/ to understand) ____________ you if you (to whisper) __________.
They (not/ to survive) ________ in the desert if they (not/ to take) __________ extra water with them.
If you (to press) __________ CTRL + S, you (to save) __________ the file.

3. Cõu tng thut
_ Cõu tng thut dựng thut li li núi ca ngi khỏc
- ẹoọng tửứ tửụứng thuaọt thửụứng gaởp: said, told, thought, announced
* Cõu tng thut cú dng: S + said that (told me that) + ... (cõu k)
Vớ d
He said to me, I and you will go with her father. (Cõu trc tip)
He told me (that) he and I would go with her father
Khi chuyn mt cõu trc tip thnh cõu giỏn tip ta phi i ba thnh phn ca cõu:
a. Ngụi
Ghi nh: Nht-Ch, Nh- Tỳc, Tam- Nguyờn
Cú ngha l: Ngụi th nht trong cõu trc tip (I, we) chia theo ch t trong mnh chớnh
Ngụi th hai (you) chia theo tỳc t trong mnh chớnh

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Thanh Cuong – Gia su Can Tho

Ngôi thứ ba (He, she, it) giữ nguyên không đổi
Ví dụ:
She said to her father: “I will go to the hospital with you”
 She said that she would go to the hospital with her father
b. Thì
Động từ trong câu tường thuật lùi một thì so với câu trực tiếp
V1  V2/Ved

(Hiện tại đơn quá khứ đơn)

V2/ed  Had + Ved/V3

(Quá khứ đơn quá khứ hoàn thành)

Have + Ved/3  Had+ Ved/V3

(Hiện tại hoàn thành Quá khứ hoàn thành)

Am/is/ are + Ving  were/was+ Ving

(HTTD QKTD)

…
Can could

Will  would

Shall should

May  might

Must  had to
c. Trạng từ chỉ thời gian và nơi chốn
Today  that day

Now  then

Tonight  that night

Ago before

Yesterday  the day before

Last weekThe week before/ The privious week

Next week  the week after

Tomorrow  The day after

(The fowllowing week)
This  that

These  those

Here  there

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Thanh Cuong – Gia su Can Tho

Ví dụ: She said to me, “I met your brother yesterday.”
 She told me that she had met my brother the day before.
I  she ( nhất chủ)

Your brother my brother ( Nhị túc)

Met had met

Yesterday  The day before

Exercise 1: Rewrite following sentences so that the meaning stay the same.
1. She said to me:”I can’t do it by myself”
 She told me that....................................................................................................................
2. “I have just received a postcard from my sister,” Jake said to me.
 Jake told me that...............................................................................................................
3. “This story happened long ago”he said.
He said that...................................................................................................................................
4. “I have written this note” the boss said.
 The boss said that.....................................................................................................................
5. Hoa said to me “I will help you in your project”
 Hoa said that.............................................................................................................................
6. Helen said, "I think I'll have to find a better job because I can't make both ends meet."
 Helen said that.............................................................................................................................
7. He said, “I will come to your house tomorrow”

 He said that.............................................................................................................................
8. Thu said “All the students will have a meeting next week”
 Thu said that.............................................................................................................................
9. Phong said “My parents are very proud of my good marks”
 Phong said that............................................................................................................................

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Thanh Cuong – Gia su Can Tho

10. The teacher said “All the homework must be done carefully”
 The teacher said that ………………………………………………………………………..
11. They told us “Our friends will get the award for their highest scores”
They told us that………….…………………………………………………………………………
12. He said “I will go to school by bus tomorrow”
…………………………………………………………………………………………………………
13. Phong said “I need to learn more vocabulary”
…………………………………………………………..…………………………………………
14. His brother told him “You can use my computer today”
………………………………………………………………………………………………………
15. Mai said “I can not go to the movies with you, Nam”
………………………………………………………………………………………………………
16. The teacher said “We can collect old book for the poor students”
………………………………………………………………………………………………………
17. She said “She doesn’t buy this book”
…………………………………………….…………………………………………………………
18. The boys said “We have to try our best to win the match”
………………………………………………………………………………………………………
19. Her classmate said “Lan is the most intelligent girl in our class”

………………………………………………………………………………………………………
20. Her father said to her “You can go to the movie with your friend”
………………………………………………..………………………………………………………
21. Hoa said “I may visit my parents in the summer”.

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Thanh Cuong – Gia su Can Tho

22. “I saw her in the park two days ago” said he.
He said ……………………………………………. ……………………………………………….
4. Reported questions: (Tường thuật dạng câu hỏi)
a. Yes/No questions:
S+asked + if/weather + S+V (lùi thì)
Ex: “Are you angry?” he asked
 He asked whether I was angry.
(Chuyển câu hỏi ở câu trực tiếp sang dạng khẳng định rồi thực hiện thay đổi thì, trạng từ chỉ thời
gian,nơi chốn,chủ ngữ,tân ngữ...)
b. Wh-questions:
S+ asked +O+Wh-words+S+V (lùi thì)

Ex:
“What are you talking about?”said the teacher.
 The teacher asked us what we were talking about
Viết lại các câu sau:
1. “Have you finished your homework?”Mom asked.
Mom asked if........................................................................................................................
2.”Who has written this note?” the boss asked the secretary.
The boss asked the

secretary.....................................................................................................................................
3. Are you going to Ho Chi Minh City next week?”Tom asked me.
 Tom asked..............................................................................................................................

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Thanh Cuong – Gia su Can Tho

4. Does your brother live in London,Nam?”Lan asked.
 Lan asked if...........................................................................................................................
5. Have you travelled abroad much?”he asked me.
 He.......................................................................................................................................
6. “Do you like coffee?” He asked me
He asked……………………………………………………………………………………..
7. “Did your mother go to the supermarket?” He asked me
He asked………………………………………………………………………………………..
8. Have you ever gone to Nha Trang? She asked me
 She asked……………………………………………………………………………………….
9. “Do you listen to music at night?” He asked my sister
 He asked…………………………………………………………………………………………
10. “Does your father work for a hospital?” She asked my girlfriend
 She asked…………………………………………………………………………………………

5. Reported commands. (Tường thuật câu mệnh lệnh)
*Khẳng định: S+told+O+to-infinitive.
Ex .”Please wait for me here,Mary.”Tom said
Tom told Mary to wait for him there.
*Phủ định: S+told+O+not to-infinitive.
Ex .”Don’t talk in class”,the teacher said to us.->The teacher told us not to talk in class.

*Reporting verbs:

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Thanh Cuong – Gia su Can Tho

-agree, decide , offer,promise, refuse...+to-infinitive
-advise, ask, encourage, invite, remind, tell, want,warn...+O+to infinitive
-admit (thừa nhận), deny(phủ nhận),stop,suggest...+-ing form)

Bài tập 1: Chuyển các câu trực tiếp sau đây thành câu gián tiếp (câu tường thuật)
1 "Don't repeat this mistake again!" the instructor warned the sports¬man.
.............................................................................................................................................
2 "Leave your address with the secretary," the assistant said to me.
............................................................................................................................................
3 "Phone to me for an answer tomorrow” the manager said to the client.
...........................................................................................................................................
4 "Don't be so silly," the father said to the kid.
...........................................................................................................................................
5 "Give a smile," the photographer said to me.
........................................................................................................................................

6 "Please, help me to make a decision," Ann asked her friend.
............................................................................................................................................
7 "Don't leave these books on the table, put them back on the shelf," the librarian said to the student.
..........................................................................................................................................
8 "Be a good girl and sit quietly for five minutes," the nurse said to the child.
.............................................................................................................................................
9 "Leave your things here," my companion advised me.

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Thanh Cuong – Gia su Can Tho

.............................................................................................................................................
10 "Don't discuss this question now," said the chairman to the participants.
..........................................................................................................................................
Bài tập 2:
1 "Will it be safe to stay in the mountains for the night if the weather doesn't change for the better?"
we asked the guide.
...........................................................................................................................................
2 The porter said to me, "I'll wake you up, when the train arrives in Leeds."
.............................................................................................................................................
3 My wife said to me: "While you are away, I'll do the packing."
..........................................................................................................................................
4 "Don't leave until I phone you," he asked me.
...........................................................................................................................................
5 "After he leaves hospital, they'll take him to the South," the doctor said.
..........................................................................................................................................
6 "They'll wait for the fisherman to return until it gets dark," the local man explained to me.
..........................................................................................................................................
7 As soon as I hear from him, I'll let you know," my neighbour said to me.
............................................................................................................................................
8 I’ll live in town till my husband returns from the expedition and when he returns, we'll go to the
seaside together," she said.
..........................................................................................................................................
9 The mother said to her son, ."Sit still, please."

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Thanh Cuong – Gia su Can Tho

.............................................................................................................................................
10 John said to his friend, "Come and spend a week with us."
..........................................................................................................................................
Bài tập 3:
1 "Have you travelled abroad much?" he asked me.
.....................................................................................................................................
2 "Who has written this note?" the boss asked the secretary.
.......................................................................................................................................
3 "I've just received a postcard from my sister," my friend said to me.
...........................................................................................................................................
4 "The students also took part in arranging the conference," the chair¬man said.
............................................................................................................................................
5 "Have you been here long?" the stranger asked me.
.............................................................................................................................................
6 "Did you really see this happen with your own eyes?" the policeman asked the boy.
...........................................................................................................................................
7 "I hope they will have taken a decision by the end of the meeting," she remarked.
..........................................................................................................................................
8 "Did you watch the detective film on TV yesterday?" he asked her.
.............................................................................................................................................
9 "This story happened long ago," he said, "and few people remember anything about it."
........................................................................................................................................
10 "I haven't read so interesting a book since I don't remember when," she said.

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Thanh Cuong – Gia su Can Tho

KEY bài tập 1
1.The insructor warned the sportsman not to repeat that mistake again.
2.The assistant told me to leave the address with the secretary.
3.The manager asked the client to phone to him for an answer the next day/the following day.
4.The father told the kid not to be so silly.
5.The photographer told me to give a smile.
6.Ann asked/begged her friend to help her make a decision.
7.The librarian told the student not to leave those books on the table,but to put them back on the shelf.
8.The nurse told the child to be a good girl and to sit quietly for five minutes.
9.My companion advised me to leave my things there.
10.The chairman asked the participants not to discuss that question at the moment.
KEY bài tập 2
1.We asked the guide if it would be safe to stay in the mountains for the night if the weather didn’t changed for the better.
2.The porter told me he would wake me up when the train arrived in Leeds.
3.My wife told me that she would do the packing while I was away.
4.He told me not to leave until he phoned me.
5.The doctor said that after he left hospital they would take him to the South.
6.The local man explained to me that they would wait for the fisherman to return until it got dark.
7.My neighbour told me she would let me know as soon as she heard from him./
-My neighbour promised to let me know as soon as she heard from him.
8.She said that she would live in town untilher husband returned from the expedition and that when he returned,they
would go to the seaside together.
9. The mother told her son to sit still.

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Thanh Cuong – Gia su Can Tho

10.John asked/told his friend to come and spend a week with him.
KEY bài tập 3
1.He asked me if I had travelled abroad much.
2.The boss asked the secretary who had written that note.
3.My friend told me she had just received a postcard from his sister.
4.The chairman said that the students had also taken part in arranging the conference.
5.The stranger asked me if I had been there long.
6.The policeman asked the boy if he had really seen that happen with his own eyes.
7.She remarked that she hoped they would have taken a decision by the end of the meeting.
8.He asked her if she had watched the detective film on Tvthe day before/the previous day.
9.He said that story had happened long before and that few people remembered anything about it.
10.She said that she hadn’t read so interesting a book since she didn’t remember when.

Choose the best answer:

1. Julia said that she ___________ there at noon.
A. is going to be

B. was going to be

C. will be

D. can be

2. He _______ that he was leaving way that afternoon.
A. told me

B. told to me

C. said me

D. says to me

3. She said to me that she __________ to me the Sunday before.
A. wrote

B. has written

C. was writing

D. had written

4. I _________ him to sell that old motorbike.
A. said to

B. suggested C. advised

D. recommended

5. My parents reminded me ________ the flowers.

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Thanh Cuong – Gia su Can Tho

A. remember to plant B. plant

C. to plant

D. planting

6. I asked Martha ______ to enter law school.
A. are you planning

B. is she planning

C. was she planning

D. if she was planning

7. Nam wanted to know what time ________.
A. does the movie begin

B. did the movie begin

C. the movie begins D. the movie began

8. I wondered_______ the right thing.
A. whether I was doing

B. if I am doing

C. was I doing

D. am I doing

9. The scientist said the earth ________ the sun.
A. goes round B. is going around

C. went around

D. was going around

10. Peter said that if he ________rich, he _________ a lot.
A. is – will travel B. were- would travel C. had been – would have travelled D. was – will travel
11. They said that they had been driving through the desert__________.
A. the previous day B. yesterday C. the last day D. Sunday previously
12. He asked the children _________too much noise.
A. not to make B. not making C. don’t make D. if they don’t make
13. The man said that money ___________ the passport to everything.
A. will be B is C. was D. can be
14. The teacher said Columbus _________America in 1942.
A. discovered B. had discovered C. was discovering D. would discover
15. John said he _________ her since they ________ school.
A. hasn’t met – left B. hadn’t met - had left C. hadn’t met left D. didn’t meet – has left
16. The woman asked __________get lunch at school.

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Thanh Cuong – Gia su Can Tho

A. can the children B. whether the children could C. if the children can D. could the children
17. Laura said that when she_________ to school, she saw an accident.
A. was walking B. has walked C. had been walking D. has been walking
18. He asked, “Why didn’t she take the final exam?” - He asked why __________ the final exam.

A. she took B. did she take C. she hadn’t taken D. she had taken
19. Ba said he__________ some good marks the semester before.
A. gets B. got C. had gotten D. have got
20. They told their parents that they___________ their best to do the test.
A. try B. will try C. are trying D. would try
21. She asked me where I___________ from.
A. come B. coming C. to come D. came
22. She_________ me whether I liked classical music or not.
A. ask B. asks C. asked D. asking
23. He asked me who____________ the editor of that book.
A. was B. were C. is D. has been
24. He wants to know whether I ___________ back tomorrow.
A. come B. came C. will come D. would come
25. I wonder why he___________ love his family.
26. They asked me how many children___________.
A. if I had B. had I C. I have D. have I
27. Thu said she had been___________ the day before.
A. here B. there C. in this place D. where
28. The student said that the English test_______ the most difficult.

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Thanh Cuong – Gia su Can Tho

A. is B. was C. will be D. have been
29. He wanted to know _______ shopping during the previous morning.
A. if we had been going B. that if we had been going
C. we were going D. that we were going
30. He asked me _______ Robert and I said I did not know _______.

A. that did I know / who were he

B. that I knew / who he had been

C. if I knew/ who he was

D. whether I knew / who had he been

1 B 2 A 3 D 4 C 5 C 6 D 7 D 8 A 9 A 10 B
11 A 12 A 13 B 14 A 15 B 16 B 17 C 18 C 19 C 20 D
21 D 22 C 23 A 24 A 25 A 26 C 27 B 28 B 29 A 30 C

Unit 9: UNDERSEA WORLD
1. Vocabulary
undersea ['ʌndəsi:] (a) dưới mặt biển
ocean ['əʊ∫n] (n) đại dương, biển
Pacific Ocean [pə'sifik'ou∫n] (n) Thái Bình Dương
Atlantic Ocean [ət'læntik'ou∫n] (n) Đại Tây Dương
Indian Ocean ['indjən'ou∫n] (n) Ấn Độ Dương
Antarctic [æn'tɑ:ktik](a) (thuộc) Nam Cực → Antarctic Ocean (n) Nam Băng Dương
Arctic ['ɑ:ktik](adj) (thuộc) Bắc Cực → Arctic Ocean (n) Bắc Băng Dương

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Thanh Cuong – Gia su Can Tho

jellyfish ['dʒelifi∫] (n) con sứa
oversized ['ouvəsaizd] (adj) q khổ, ngoại khổ
contribute [kən'tribju:t] (v) đóng góp, góp phần

biodiversity [,baioui dai'və:siti] (n) đa dạng sinh học
maintain [mein'tein] (v) duy trì
refer [ri'fə:] to (v) quy, quy vào
balanced ['bỉlənst] (adj)cân bằng, ổn định
analyse ['ỉnəlaiz] : analyze ['ỉnəlaiz] (v) phân tích
century ['sent∫əri] (n) thời kỳ 100 năm; thế kỷ. Eg:The 20th century: Thế kỷ 20 (từ 1900 đến 1999)
mystery ['mistəri] (n) điều huyền bí, điều thần bí → mysterious (adj)
beneath[bi'ni:θ] (prep) ở dưới, thấp kém
overcome [,ouvə'kʌm] (v) -overcame- overcome: thắng, chiến thắng
depth [depθ] (n) chiều sâu, bề sâu. Eg: the depth of a river: chiều sâu của con sơng
submarine [,sʌbmə'ri:n](n)(hàng hải) tàu ngầm
investigate [in'vestigeit] (v)khám phá

2. Grammar
Should / Shouldn’t (nên / không nên)
Dùng để khuyên ai đó nên hay không nên làm việc gì.
Ex:
- He looks very tired. He should visit his doctor.
(He looks very tired. I think he should visit his doctor.
- It’s raining heavily. You shouldn’t go out right now.
(It’s raining heavily. I don’t think you should go out right now.)
3. Câu điều kiện loại 2

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