Bài tập câu điều kiện

Conditional sentences

Exercise 1: Put the verbs in brackets into the correct forms.
1. If I (have)...................time, I will write to him.
2. If it’s cold, I (need)........................a heavier coat.
3. What are you going to do if you (have)......................a holiday?
4. If I can go tomorrow, I (let)........................you know.
5. If I should meet Helen, I (give)........................her your message.
6. If flowers don’t get any water, they (die).............................
7. If I (get).....................a headache, I usually take some aspirins.
8. I will go to the party unless it (rain).........................
9. She will buy the car as long as it (not be).......................too expensive.
10. Everything (be).......................provided you tell the truth.
11. If he (come)........................., please tell him that I’ll be back in a few minutes.
12. Don’t come if they (not call)...................you.
13. If you (need)......................, why don’t you tell me?
14. Suppose you (win)........................a lot of money, what would you do?
15. If I got up earlier, I (not be)......................late for work.
16. If I didn’t feel so tired, I (go).....................out with you.
17. If you (not pass)................. the exam, would you take it again?
18. If I (be)................. you, I would apply for the job.
19. I could repair the car if I (have)....................the right tools.
20. If I (study).....................hard, I would have passed the exam.
21. If I (not be)......................busy yesterday, I would have visited you.
22. She (go)........................to the university if she had had the opportunity.
23. Suppose they had offered her a job, do you think she (take).....................it?
24. If she hadn’t been ill yesterday, she (go)..........................to work now.
25. If I (be)..................you, I wouldn’t have told him the truth yesterday.
26. If today were Monday, I (not go)..........................to work yesterday.
27. What would happen if you (not go)........................to work tomorrow.
28. If I had gone to yoour party last night, I (be)...................very tired now.

Exercise 2: Put each verb in brackets into a suitable tense.
1. Why didn’t you phone? If I (know).......................you were coming, I (meet)...
..............you at the airport.
2. It’s a pity you missed the party. If you (come)...................., you(meet)...............
my friends from Hungary.
3. If we (have) .....................some tools, we (be able) to repair the car, but we haven’t got any with us.
4. Thank you for your help. If you (not help)..................., I (not pass).................. the examination.
5. It’s a beautiful house, and I (buy)......................it if I (have)....................the money, but I can’t afford it.
6. I can’t imagine what I (do)....................with the money If I (win)..................the football pools or a
lottery.
7. Mark isn’t a serious athlete. If he (train).................harder, he (be).............quite
a good runner.
8. If Claire (listen)...................to her mother, she (not marry)..................David in the first place.
9. It rained every day on our holiday. If we (not take)..................the television with us, we (not
have)........................anything to do.
10. Jim is so untidy! If he (buy).......................some new clothes, he (not look) ......
...................so bad.
Exercise 3: Rewrite these sentences, beginning as shown, so that the meaning stays the same.
1. I don’t buy it because I don’t have enough money.
----> If I ........................................................................................................
2. I didn’t buy it because I didn’t have enough money.
----> I would..................................................................................................
3. There was a test yesterday. I didn’t know that, so I didn’t study for it.
----> If I ........................................................................................................
4. I’m busy right now, so I can’t help you.
----> I could...................................................................................................
5. He’s very thin, that’s why he feels the cold so much.
----> If he.......................................................................................................
6. I didn’t eat breakfast several hours ago, so I am hungry now.
----> If I..........................................................................................................

7. If John had played for our football team, we would not have lost the game.
----> Unless....................................................................................................
8. If I won a big prize in a lottery, I’d give up my job.
----> Unless....................................................................................................
9. If you don’t like this one, I’ll bring you another.
----> Unless....................................................................................................
10. I’ll only help you if you promise to try harder.
----> Unless....................................................................................................
11. If she doesn’t work harder, she’ll lose her job.
----> She’ll.....................................................................................................
12. You can use my car, but have to keep it carefully.
----> Provided................................................................................................
13. If the work is finished by lunch , you can go home.
----> Get.........................................................................................................
14. Keeping calm is the secret of passing your driving test.
----> As long as..............................................................................................
15.You must work harder or you won’t pass the exam.
----> You won’t..............................................................................................
16. She must apologise to me or I’ll never speak to her again.
----> I’ll.........................................................................................................

Exercise 4: Rewrite these sentences, beginning as shown, so that the meaning stays the same.
1. I didn’t have an umbrella with me and so I got wet.
----> I wouldn’t..............................................................................................
2. I’ll call the police if you don’t leave me alone.
----> Unless......................................................................................................
3. In the snowy weather we don’t go to school.
----> If..............................................................................................................
4. Without Jack’s help, I wouldn’t have been able to move the table.
----> If..............................................................................................................

5. You drink too much coffee, that’s why you can’t sleep.
----> If you.......................................................................................................
6. You press this button to stop the machine.
----> If..............................................................................................................
7. Make me some coffee, and I’ll give you one of my biscuits.
----> If..............................................................................................................
8. If you hadn’t told me about Sue’s hair, I wouldn’t have noticed.
----> Unless......................................................................................................
9. If you see Peter, tell him he should be here at 8.00.
----> If you should............................................................................................
10. I wouldn’t accept if you asked me to marry you.
----> If you were...............................................................................................
Exercise 5: Rewrite these sentences, beginning as shown, so that the meaning stays the same.
11. Working so much will make you tired.
----> If...............................................................................................................
12. I regret drinking so much last night.
----> If only.......................................................................................................
13. What would you do if there was an earthquake?
----> Supposing ................................................................................................
14. If you do the shopping, I’ll cook lunch.
----> You...........................................................................................................
15. What would you do If you found some burried treasure.
----> If you were................................................................................................
16. If Pauline hadn’t been interested, the project would have been abandoned.
----> But for.......................................................................................................
17. If by any chance you find my wallet, could you let me know?
----> If you happen............................................................................................
18. I might be late. If so, Start without me.
----> If I.............................................................................................................
19. The fire was brought under control thanks to the night-watchman.

----> If it hadn’t.................................................................................................
20. Dick is in prison because a detective recognised him.
----> If a detective.............................................................................................
Exercise 6: choose the best answer.
1. I didn’t have an umbrella with me, so I got wet.
A. If I had had an umbrella, I wouldn’t have got wet. B. If I had had an umbrella, I wouldn’t have got wet
C. If I had had an umbrella, I wouldn’t get wet. D. If I had had an umbrella, I would get wet
2. ……………. we find new sources, we will soon run out of energy.
A. If B. When C. Unless D. Only
3. If I had millions of dollars, I would ………….. all over the world.
A. be travelled B. travelling C. travel D. to travel
4. If you work hard, you will eventually .................
A. succeed B. successful C. successfully D. success
5. “Will you come to the party tomorrow?” – “I will if I................no visitors “
A. have B. will have C. had D. am having
6. If it ………….. too cold, we could go on a picnic.
A. isn’t B. wouldn’t be C. weren’t D. wouldn’t be
7. If you were not sick, ………….. with us?
A. will you come B. would you come C. do you come D. are you coming
8. If I were you, I would persuade him ………….. the new treatment.
A. to try B. trying C. tries D. try
9. If gravity, the pull of the earth, is zero, everything .................
A. will float B. would be floating C. floated D. would float
10. If an object is let off in the cabin of a spaceship, it …………….
A. floated B. is floating C. will float D. would float
11. We would save thousands of lives if ................. the remedy for the flu.
A. we find out B. we found
C. we will find D. we had not found out
12. If I ………….. you, I would gho to bed earlier at night.
A. be B. am C. had been D. were

13. If they didn’t live so far away, I ………….. them every week.
A. visit B. visited C. will visit D. would visit.
14. If I were 5 years younger, I would ………….. that job.
A. apply to B. apply for C. apply into D. apply in
15. I won’t accept unless .................
A. Tom to apologize B. Tom apologizes C. when to apologizes D. Tom is apologizing
16. ……………. we don’t try to limit the world’s population, there won’t be enough space to live.
A. When B. If C. Unless D. While
17. If the questions ………….. not too difficult, we ………….. them.
A. were/ could anser B. are/ could anser C. were/ can answer D. are/ can answer
18. . ................. if you take a map.
A. You would have got lost B. You’ll get lost C. You would get lost D. You won’t get lost
19. Unless we ……………. throwing garbage into the river, it will be polluted.
A. stop B. don’t stop C. will stop D. won’t stop
20. All of our rain forests ……………. unless we find some ways to stop people from cutting down trees.
A. will be destroyed B. are destroyed C. will destroy D. destroy
21. If he attended the class regularly, he…………to sit for the exam.
A. would allow B. allowed C. would be allowed D. would have alowed
22. If I………….the leader of the team, I……………do a lot of things.
A. was / ill B. was / would C. were / would D. had been / would
23. He would understand it if you……………it to him more slowly.
A. explained B. would explain C. were explaining D. explains
24. If you will study harder, you will surely pass the coming exams with good results.
A B C D
25. If I am 10 centimeter taller, I would play basketball.
A B C D
26. If I were you, I will go to the dentist’s and have the tooth checked.
A B C D
27. If the weather weren’t too bad, we would to go swimming
A B C D

28. If the doctors could find in the remedy, a lot of people would be saved.
A B C D
29. If he bought that house now, she ran out of money.
A B C D
30. If he weren’t too old, he would apply to the job as a war reporter.
A B C D
31. What you would do if you could speak French well?
A B C D
32. If I had money, I will buy a car.
A B C D
33. If we don’t stop to destroy forests, soon there will be no forest left on the earth.
A B C D
34. If we will reduce the speed of population growth, there will be less presure on the earth.
A B C D
35. If we do nothing for preserve their habitat, some species will become extinct.
A B C D
36. Unless we leave a bowl of water under the sun, it will evaporate.
A B C D
37. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis.
A B C D
38. Men will continue to live on foods unless other types of protein are not found.
A B C D
39.
If there isn t enough rain, the hydropower station can not operate.’
A. When there isn’t enough rain, the hydropower station can operate.
B. Unless there is enough rain, the hydropower station can operate.
C. Unless there isn’t enough rain, the hydropower station can not operate.
D. Unless there is enough rain, the hydropower station can’t operate.
40.
If we can t prevent it in advance, the hurrican will destroy the coastal towns.’

A. Unless we can prevent it in advance, the hurrican will destroy the coastal towns.
B. Unless we can prevent it in advance, the hurrican won’t destroy the coastal towns.
C. Unless we can’t prevent it in advance, the hurrican won’t destroy the coastal towns.
D. When we can’t prevent it in advance, the hurrican won’t destroy the coastal towns.
41.
If we don t save water, we will have to suffer fromn water shortage.’
A. Unless we don’t save water, we will have to suffer from water shortage.
B. If we save water, we won’t have to suffer from water shortage
C. Unless we don’t save water, we won’t have to suffer from water shortage
D. If we save water, we will have to suffer from water shortage.
42.
She is too weak; she can t sit up and talk to you’ .
A. If she wasn’t too weak, she could sit up and talk to you.
B. If she hadn’t been too weak, she could sit up and talk to you
C. If she isn’t too weak, she can sit up and talk to you
D. If she wasn’t too weak, she can sit up and talk to you
43.
I am too old now; otherwive, I will apply for that post.
A. If I would not be too old, I would apply for that job. B. If I was not be too old, I will apply for that job.
C. If I were not oo old, I would apply for that job. D. If I am not too old, I will apply for that job.
44.
I don t have enough money with me now; otherwise I will buy that coat.’
A. If I didn’t have enough money with me now, I would buy that coat.
B. If I had enough money with me now, I would buy that coat.
C. If I had enough money with me now, I wouldn’t buy that coat.
D. If I didn’t have enough money with me now, I wouldn’t buy that coat.
45.
It s raining and they can t go camping in the mountain.’ ’
A. If it was raining, they could go camping in the mountain.
B. If it isn’t raining, they could go camping in the mountain.

C. If it wasn’t raining, they could go camping in the mountain.
D. If it is raining, they could go camping in the mountain.