CHỐNG LIỆT 17 KHUYẾT THIẾU

MODALS AND MODALS PERFECT (KHUYẾT THIẾU VÀ KHUYẾT THIẾU HOÀN THÀNH) 0,2
1. Kiến thức cơ bản:
Mức độ ưu tiên:
1. I’M SURE: 1- 3/6 – 5 (khơng có 1 thì chọn 3/6 khơng có 3/6 thì chọn 5 theo mức độ ưu tiên)
2. POSSIBLE: 5-1-3/6 (tương tự như bên trên)
1. Must have P2
Chắc hẳn là đã, có dấu hiệu ở hiện tại
I’m sure….quá khứ (Ved/ V2)
I’m certain…….quá khứ (Ved/V2)
2. Should have P2
Shouldn’t have P2

Lẽ ra đã nên làm gì/ khơng nên làm gì
It was a mistake of….
It was wrong of….
…..fault……..
I regret Ving…..
………….prohibited/ prohibition
Should= ought to V
3. Can’t have P2
Đã không thể nào… (dựa trên cơ sở, căn cứ)
4. Needn’t have P2
Đã khơng cần thiết phải làm
Wasn’t necessary……
Unnecessary….
5. Might/ May have P2
Đốn việc gì xảy ra ….. (khơng chắc chắn)
Might/May have not P2
Possible, impossible, perhaps…..
6. Could have P2
Chỉ những việc có lẽ đã xảy ra nhưng trên thực tế đã không xảy ra

7. Have to V/ Should Vo
Necessary……
8. Mustn’t Vo
Be not allowed……, don’t allow…..
It’s against the law
Mandatory, compulsory, obligatory
9. Must Vo
Really believe….
Tobe required to …..
10. Needn’t Vo
It isn’t mandatory……
…………..but/so/because……. should/ shouldn’t have P2 (phủ là phủ, khẳng là khẳng)
2. Luyện tập
1. You are not allowed to take photos in the museum.
A. You may take photos in the museum.
B. You should take photos in the museum.
C. You mustn’t take photos in the museum.
D. You needn’t take photos in the museum.
2. I’m certain that Joe attended the ceremony as he can vividly recount the event.
A. Joe could have attended the ceremony as he can vividly recount the event.
B. Joe must have attended the ceremony as he can vividly recount the event.
C. Joe mightn’t have attended the ceremony as he can vividly recount the event.
D. Joe needn’t have attended the ceremony as he can vividly recount the event.
3. I thought it was not necessary to book tickets for the film in advance, but I was wrong.
A. I needn’t have booked tickets for the film in advance.
B. I couldn’t have booked tickets for the film in advance.
C. I should have booked tickets for the film in advance.
D. I must have booked tickets for the film in advance.
4. I’m sure that they had practiced hard for the games as they won a lot of medals
Đề cương ôn thi TN THPT 2021_ Mr. Anh Thắng (Nguyễn Hải Việt)

Trang 1


A. They couldn’t have practiced hard for the games as they won a lot of medals
B. They must have practiced hard for the games as they won a lot of medals
C. They shouldn’t have practiced hard for the games as they won a lot of medals
D. They might have practiced hard for the games as they won a lot of medals.
5. It was wrong of you to criticise your son in front of his friends.
A. You could have criticised your son in front of his friends.
B. You must have criticised your son in front of his friends.
C. You mightn’t have criticised your son in front of his friends.
D. You shouldn’t have criticised your son in front of his friends.
6. I’m sure Luisa was very disappointed when she failed the exam.
A. Luisa must be very disappointed when she failed the exam.
B. Luisa must have been very disappointed when she failed the exam.
C. Luisa may be very disappointed when she failed the exam.
D. Luisa could have been very disappointed when she failed the exam.
7. I really believe my letter came as a great surprise to John.
A. John might be very surprised to receive my letter.
B. John might have been very surprised to receive my letter.
C. John must be very surprised to receive my letter.
D. John must have been very surprised to receive my letter.
8. Sally paid for her travel in advance, but it wasn’t necessary.
A. Sally needn’t have paid for her travel in advance.
B. Sally might not have paid for her travel in advance.
C. Sally may not have paid for her travel in advance.
D. Sally couldn’t have paid for her travel in advance.
9. You needn’t have taken so many warm clothes there.
A. It was not necessary for you to take so many warm clothes there.

B. You have taken so many warm clothes there that I don’t need.
C. There’s no need for you to take so many warm clothes there.
D. You took lots of warm clothes there but it turned out not necessary.
10. Mary should never have been allowed to try to swim in the sea alone.
A. When Mary let to swim in the sea alone, she said new what she was doing.
B. It would probably be wrong to let Mary swims in the sea on her own.
C. No one could have stopped Mary from trying to swim in the sea by herself.
D. Someone ought to have stopped Mary from attempting to swim in the sea on her own.
11. It was impossible that he forgot to wear the helmet.
A. He should have worn the helmet
B. He must have worn the helmet
C. He might have forgot to wear the helmet
D. He needn’t have forgot wearing the helmet
12. The fishes had died. I’m sure he forgot to feed them.
A. He must have forgot to feed the fishes.
B. He should have fed the fishes.
C. He needn’t have fed the fishes.
D. He might have forgot feeding the fishes.
13. His parents complained about his absence from school. It’s wrong of him not to tell them about that.
A. He should have told his parents about his absence from school.
B. He might have told his parents about his absence from school.
C. He must have told his parents about his absence from school.
Đề cương ôn thi TN THPT 2021_ Mr. Anh Thắng (Nguyễn Hải Việt)

Trang 2


D. He can have told his parents about his absence from school.
14. I’m sure that she didn’t kill him because she was with me at the supermarket when the murder
happened.

A. She mustn’t have killed him because she was with me at the supermarket when the murder happened.
B. She needn’t have killed him because she was with me at the supermarket when the murder happened.
C. She can’t have killed him because she was with me at the supermarket when the murder happened.
D. She shouldn’t have killed him because she was with me at the supermarket when the murder
happened
15. Perhaps he will return before you call.
A. He may be returning before you called.
B. He may/might have returned before you called.
C. He should have returned before you called.
D. He may return before you call.
16. You don’t need to type the letter right now. You can do it later.
A. You mustn’t type the letter right now because you can do it later.
B. You can’t have typed the letter right now because you can do it later.
C. You needn’t type the letter right now because you can do it later.
D. You needn’t have typed the letter right now because you can do it later.
17. It’s against the law if you hunt the endangered species.
A. You don’t need to hunt the endangered species.
B. You mustn’t hunt the endangered species.
C. You needn’t hunt the endangered species.
D. You can’t hunt the endangered species.
18. I’m sure he knew all about the secret because he was there when we were talking.
A. He must be knowing all about the secret because he was there when we were talking.
B. He should have known all about the secret because he was there when we were talking.
C. He must have known all about the secret because he was there when we were talking.
D. He might have known all about the secret because he was there when we were talking.
19. It isn’t mandatory to submit my assignment today.
A. I mustn’t submit my assignment today.
B. My assignment must have been submitted today.
C. I needn’t submit my assignment today.
D. My assignment is required to submit by today.

20. Tom went on and on apologizing about it, which was quite unnecessary.
A. Tom can’t have apologized. I quite understand.
B. Tom shouldn’t have apologized. I quite understand.
C. Tom wouldn’t have apologized. I quite understand.
D. Tom needn’t have apologized. I quite understand.
HOMEWORK: MODALS AND MODALS PERFECT
21. It’s possible that she didn’t hear what I said.
A. She might have not heard what I said.
B. She might not hear what I said.
C. She may not hear what I said.
D. She may not have heard what I said.
22. It’s was wrong of you to betray her because she was kind to you.
A. You shouldn’t have betrayed her because she was kind to you.
B. You needn’t have betrayed her because she was kind to you.
C. You can’t have betrayed her because she was kind to you.
Đề cương ôn thi TN THPT 2021_ Mr. Anh Thắng (Nguyễn Hải Việt)

Trang 3


D. You mustn’t have betrayed her because she was kind to you.
23. I’m sure he did this because I saw him standing there.
A. He must have done this because I saw him standing there.
B. He can have done this because I saw him standing there.
C. He need have done this because I saw him standing there.
D. He may have done this because I saw him standing there.
24. I’m sure it wasn’t Mr. Pike you saw because he is in London.
A. It mustn’t have been Mr. Pike you saw because he is in London.
B. It can’t have been Mr. Pike you saw because he is in London.
C. It mightn’t be Mr. Pike you saw because he is in London.

D. It couldn’t be Mr. Pike you saw because he is in London.
25. You have to do clean the house every morning because there is a lot of smoke out there.
A. The house has been cleaned every morning because there is a lot of smoke out there.
B. The house has to do by you every morning because there is a lot of smoke out there.
C. The house has to be done every morning because there is a lot of smoke out there.
D. The house have to be done every morning because there is a lot of smoke out there.
26. It isn’t necessary for you to send her a letter today.
A. Her letter must have been sent today.
B. I mustn’t send her letter today.
C. Her letter was required to send today.
D. You needn’t send her a letter today.
27. Is it possible for me to phone you at about 10 pm tomorrow?
A. Will I phone you at about 10 pm tomorrow?
B. Can I phone you at about 10 pm tomorrow?
C. Must I phone you at about 10 pm tomorrow?
D. Could phone you at about 10 pm tomorrow?
28. It’s time for me to start to think about the job I will do in the future.
A. I should start to think about the job I will do in the future.
B. I may start to think about the job I will do in the future.
C. I needn’t start to think about the job I will do in the future.
D. I must have started to think about the job I will do in the future.
29. James should have been told the news a long time ago.
A. James did not tell the news a long time ago.
B. James had not told the news for a long time.
C. James was not told the news although it was necessary for him.
D. James has not been told the news for a long time although he should know it.
30. Smoking is not allowed in public places such as: hospitals, schools.
A. You needn’t smoke in public places such as: hospitals, schools.
B. You mustn’t smoke in public places such as: hospitals, schools.
C. You don’t smoke in public places such as: hospitals, schools.

D. You may smoke in public places such as: hospitals, schools.
31. It is compulsory for all the students to obey the class rules.
A. All the students needn’t obey the class rules.
B. All the students needn't obey the class rules.
C. All the students can't obey the class rules.
D. All the students must obey the class rules.
32. The students are required to keep silent during the exam.
A. The students may keep silent during the exam.
Đề cương ôn thi TN THPT 2021_ Mr. Anh Thắng (Nguyễn Hải Việt)

Trang 4


B. The students must keep silent during the exam.
C. The students needn’t keep silent during the exam.
D. The students shouldn’t keep silent during the exam.
33. It is necessary for people to wear face masks when going out during the Covid-19 pandemic.
A. People can wear face masks when going out during the Covid-19 pandemic.
B. People must wear face masks when going out during the Covid-19 pandemic.
C. People should wear face masks when going out during the Covid-19 pandemic.
D. People may wear face masks when going out during the Covid-19 pandemic.
34. The workers at the factory are required to wear protective clothing.
A. The workers at the factory should wear protective clothing.
B. The workers at the factory must wear protective clothing.
C. The workers at the factory need to wear protective clothing.
D. The workers at the factory may wear protective clothing.
35. Perhaps we will be late for the meeting.
A. We must get to the meeting on time.
B. We should get to the meeting on time.
C. We needn't get to the meeting on time.

D. We may not get to the meeting on time.
36. Bill paid them a lot of money for that job,but it wasn’t necessary.
A. Bill may not have paid them a lot of money for that job.
B. Bill might not have paid them a lot of money for that job.
C. Bill needn’t have paid them a lot of money for that job.
D. Bill couldn’t have paid them a lot of money for that job.
37. Anna bought two cars a month, but it wasn’t necessary.
A. Anna might not have bought two cars a month.
B. Annn couldn’t have bought two cars a month.
C. Anna needn’t have bought two cars a month.
D. Anna couldn’t have bought two cars a month.
38. George invested nearly 5 billions in building that house, but it wasn’t necessary.
A. George may not have invested nearly 5 billions in building that house.
B. George couldn’t have invested nearly 5 billions in building that house.
C. George might not have invested nearly 5 billions in building that house.
D. George needn’t have invested nearly 5 billions in building that house.
39. Nancy managed to finish all her work yesterday, but it wasn’t necessary.
A. Nancy might not have managed to finish all her work yesterday.
B. Nancy may not have managed to finish all her work yesterday.
C. Nancy needn’t have managed to finish all her work yesterday.
D. Nancy couldn’t have managed to finish all her work yesterday .
40. Sue left this company to find a new job, but it wasn’t necessary.
A. Sue may not have left this company to find a new job.
B. Sue might not have left this company to find a new job.
C. Sue mustn’t have left this company to find a new job.
D. Sue needn’t have left this company to find a new job.

Đề cương ôn thi TN THPT 2021_ Mr. Anh Thắng (Nguyễn Hải Việt)

Trang 5