1. knew  2.wouldn't buy  3. comes  4.would help  5. had, wouldn't have to

6.live  7.is  8.will phone  9.came  10.would drive 

11.could  12.is  13.will take  14.closed  15.will come  16.come  17.will go  18.learns  19. will feel  20.isn't  21. will get  22. tries  23. will call  24.don't listen  25.hear  26.had been told  27.had known  28. would buy  29. had had  30. had studied

2

1/ If you live nearby us, we would visit you very often

2/ If the book weren't so expensive, I would be going to buy it

3/ If we could afford it, we would go out very often

4/ If we had gotten enough money, we would have gone on the trip

5/ If you don't water these plants, they will wither

6/ If I don't work late tomorrow,  I could join your party.

8/ if you don't study harder, you won’t pass the final exam.

9/ If she were a millionaire, she couldn’t buy a house in Tokyo.

10/ if you don't study hard, you will fail the exam

xl vì đã để bạn đợi lâu

Exercise 1: Give the correct tense of the verbs

1.     I (not buy) would not buy this coat if I were you.

2.     If she (come)  ................comes............. late again, she’ll lose her job.

3.     I (help)  ..................would help....... you if I could, but I’m afraid I can’t.

4.     If I had wings, I (not, have to) …would not have to … ... take an airplane to fly home.

5.     We would need less money if we (live)..................lived............. in the country.

6.     If it (be)...............is............... fine tomorrow, we will go to the coast.

7.     We (phone)...........will phone................... you if we have time.

8.     If it didn’t rain, I (come).........would come............................ to see you.

9.     I (drive)....................would drive.............. to work if I had a car.

10. Where in Vietnam would you like to live if you (can).........could..................... choose?

11. If the weather (be)...............is........... good, we will have lunch outside.

12. If the company offers me a job, I think I (take)....will take.............................. it.

13. Many people would be unemployed if that factory (close) closed down.

14. If you finish before 4:30, I (come)..................will come.......... and pick you up.

15. If you (come)       come                   home on time, we’ll have dinner together.

16. I (go)                    will go          to the movies with you if I finish my homework early.

17.   If he (learn)                  learns      how to swim, he can go with us to the beach.

19. You (feel)  will feel             tired tomorrow if you stay up very late tonight.

20. If the weather (not, be)         is not                    cold tomorrow, we’ll go swimming.

21. If you eat too much, you (get)       will get              sick.

22.     If she (try)          tries              hard, she can get a good job somewhere.

23.     If I have any trouble, I (call)    will call                   for your help.

24.     You will get into trouble if you (not, listen)       do not listen                      to my advice.

25.     Please, let me know at once if you (hear)             hear             any news from Jane

Exercise 2: Rewrite the sentences

1.     We don’t visit you very often because you live so far away.

-> If you……did not live so far away, we would visit you very often………………………………………………………………………

2.     That book is too expensive, so I’m not going to buy it.

-> If the book……were not too expensive, I would buy it…………………………………………………………………………..

3.     We don’t go out very often because we can’t afford it.

->If we………could afford, we would go out more often………………………………………………………………………………

4.     We haven’t got any money so we can’t go on the trip.

->If we…………had money, we could go on the trip……………………………………………………………………….

5.     Water these plants or they will wither.(khô)

->if you…do not water these plants, they will wither………………………………………………………………………………..

6.     I have to work late tomorrow, so I can’t join your party.

è If I……didn't have to work late tomorrow, I could join your party…………………………………………………………………..

7.     Unless you study harder, you won’t pass the final exam.

-> If you……study harder, you will pass the final exam………………………………………………………………………….

8.     I’ve got a lot of work to do, so I can’t go home for lunch now.

->If I…did not have a lot of work to do, I could go home for lunch now…………………………… ………………………………………………

9.     She is not a millionaire so she can’t buy a house in Tokyo.

->If she……were a millionaire, she could buy a house in Tokyo.…………………………………………………………………………………….

10. Study hard or you will fail the exam.

If you……do not study hard, you will fail the exam………………………………………………………………………….

1 knew

2 wouldn't buy

3 would help

4 lived

5 weren't - wouldn't be

6 ran out - would need

7 will increase - use

8 try - won't be

9 will change - die

10 had known - would have gone

11 he had missed  - he would have been

12 had been

13 It would have been - I had walked

chia câu điều kiện:

1,if she (come).....comes.....late again , she(lose)....will lose...... her job

2,I (let) ......will let..... you know if I(find)......find...... out what's happening

3,I know I (feel)....will feel.. better if I(stop)....stop...... smoking

4,if I (be)...were....... you , I (help)...would help........ him

5,if i........... a lot of money now,I ........... a new cả

A.have/will buy B.have/would buy C.had/will buy D.had/would buy

6,if I ........... you,I ......... do that

A.am/will B.were/would C.were/will D.had been/would

Chia động từ (câu điều kiện)
1. If I (make) make that mistake again, my teacher (get) will get angry with me.

2. They (not/let) won't let you in if you (come) come late

3. If you (not go) don't go away, I (send) will send for a police man

4. If she (come) comes late again, she (lose) will lose her job

5. I know I (feel) would feel better if I (stop) stopped smoking

6. I (understand) would understand him if he (speak) spoke more slowly

7. He's waiting for his mother to come back from Chicago. If his mother (come) comes home, he (have) will have a lot of presents

8. If you (not be) weren't so busy, I (show) would show you how to play

9. If we (have) had some eggs, I (make) would make you a cake

10.If you (like) like, I (get) will get you a job in this company

11. If grandmother (be) were 5 years younger, she (play) would play some games

Chia động từ (câu điều kiện)
1. If I (make)make that mistake again, my teacher (get)will get angry with me.
2. They (not/let)won't let you in if you (come)come late
3. If you(not go)don't go away, I (send)will send for a police man

4. If she(come)comes late again, she will lose(lose)her job
5. I know I (feel)would feel better if I (stop)stopped smoking
6. I (understand)would understand him if he (speak)spoke more slowly
7. He's waiting for his mother to come back from Chicago. If his mother (come)comes home, he (have)will have a lot of presents
8. If you (not be)weren't so busy, I (show)would show you how to play
9. If we (have)had some eggs, I (make)would make you a cake
10.If you like(like ), I (get)will get you a job in this company
11. If grandmother (be)were 5 years younger, she (play)would play some games

21) If she (come/comes/came/had come) late again, she’ll lose her job.
22) I’ll let you know if I (find/finds/found/had found) out what’s happening.
23) If we (live/lived/would live/had lived) in a town, life would be better.
24) I’m sure he wouldn’t mind if we (arrive/arriving/arrived/had arrived) early.
25) We (will phone/would phone/phoned/had phoned) you if we have time.
26) If I won the lottery, I (gave/had given/will give/would give) you half the money.
27) It (will/would/can/may) be a pity if she married Fred.
28) If I’m free on Saturday, I (to go/could go/went/can go) to the mountains.
29) She (will has/had/will have/have) a nervous breakdown if she goes on like this.
30) I know I’ll feel better if I (will stop/stopped/stop/had stopped) smoking.
31) If I (am/were/will be/had been) you, I would help him.
32) I could have understood him if he (speaks/spoke/had spoken/would speak) more slowly.
33) He didn’t listen to the teacher. If he (listens/listened/has listened/had listened) carefully, he (will performed/would perform/would have performed/had performed) well in the examination.
34) He’s waiting for his mother to come back from Chicago. If his mother (come/comes/will come/came) home, he (will has/will have/has/had) a lot of presents.
35) He wanted to buy some Christmas presents but he couldn’t. If he (afforded/affords/had afforded/would afford) to buy, his children (are/were/would have be/would have been) very happy to greet a new year.
36) The kitchen will look better if we (have/had/had had/would have) red curtains.
37) If I knew his address, I (go/will go/would go/went) round and see him.
38) If you (hadn’t been/weren’t/aren’t/wouldn’t be) so busy, I would have shown you how to play.
39) It (will be/would be/were/been) quicker if you use a computer.
40) If we have some eggs, I (made/makes/will make/would make) y

1,Known,going to see

2,will bought 

3.will buy

4.will saw,going 

5,won't be 

1,Known,going to see

2,will bought 

3.will buy

4.will saw,going 

5,won't be 

1. Would you like if I . . . . closed. . . . . (close) the windows?

2 . What would happen if I. . . . .didn't do . . . (not do) that?

3. He couldn 't understand if we. . . didn't explain . . . . (not explain) more .

4. If we didn 't visit her, she. . . . . .would be . . . . . (be) very sad.

5. We. . . . .wouldn't be. . (not be) tired if we didn 't try to do that.

6. If I refused, he. . . . would be. . . . . (be) very disappointed.

7.I . . . took. . . ... . . . (take) this job if I were out of work now .

8 . You would be very upset if you. . . . . . . . .lost. . . . . . . (lose) it.

9. He would feel better if he. . . .exercised. . . . . (exercise) more.

10 . I (tell). . . .. . . would tell . . . the answer if I knew it.

11. If we. . . .didn't come . . . . (not come) she would feel lonely.

12 . If we did not take this job, we. .. .wouldn't earn . . . (not earn) a lot of money.

13. If he knew that it was dangerous, he (not come). . . didn't come. . . .

14. If you (see). . . saw. . . . . . someone drowning, what would you do?

15. If you slept under a mosquito net, you (not be). .. .wouldn't be. . . bitten so often.

16. I could get a job easily if I (have). . .had. . . . a degree.

17. If we had more rain, our crops (grow). . . .would grow. . . . faster.

18. We could save his life if we. . . found. . . . (find) him earlier.

19. He could be a medical student if he. . . tried. . . . . (try) more.

20. Would you like if I. . . . . opened. . . . . (open) the door?

21. What would happen if I. .pressed . . . (press) that botton?

22 . He might get fat if he (stop). . stopped. . smoking.

23. If he knew that it was good for his health, he (do). .would do . . .

24. If I knew that you were ill, I (go). . .would go. . to see you.

25. You would be very surprised if he (return). returned. .

26. They would not come to the party if you (not invite). . .didn't invite . . . . them.

27. What would you do if you (be). . . .were . . . . . him?

28. If I spoke English, my job (be)....would be... .. a lot easier.

29. If he (have). . . had. . . . enough money, he would buy a house.

30. If I (be). . .were. . . you, I would tell the truth. thirty first .

31.If I knew his address, I (go). . . . would go . . round and see him.

32. It 's too bad Helen isn' t here. If she (be). .were . . here, she could know what to do.

1. Would you like if I . . . . closed. . . . . (close) the windows?

2 . What would happen if I. . . . .didn't do . . . (not do) that?

3. He couldn 't understand if we. . . didn't explain . . . . (not explain) more .

4. If we didn 't visit her, she. . . . . .would be . . . . . (be) very sad.

5. We. . . . .wouldn't be. . (not be) tired if we didn 't try to do that.

6. If I refused, he. . . . would be. . . . . (be) very disappointed.

7.I . . . took. . . ... . . . (take) this job if I were out of work now .

8 . You would be very upset if you. . . . . . . . .lost. . . . . . . (lose) it.

9. He would feel better if he. . . .exercised. . . . . (exercise) more.

10 . I (tell). . . .. . . would tell . . . the answer if I knew it.

11. If we. . . .didn't come . . . . (not come) she would feel lonely.

12 . If we did not take this job, we. .. .wouldn't earn . . . (not earn) a lot of money.

13. If he knew that it was dangerous, he (not come). . . didn't come. . . .

14. If you (see). . . saw. . . . . . someone drowning, what would you do?

15. If you slept under a mosquito net, you (not be). .. .wouldn't be. . . bitten so often.

16. I could get a job easily if I (have). . .had. . . . a degree.

17. If we had more rain, our crops (grow). . . .would grow. . . . faster.

18. We could save his life if we. . . found. . . . (find) him earlier.

19. He could be a medical student if he. . . tried. . . . . (try) more.

20. Would you like if I. . . . . opened. . . . . (open) the door?

21. What would happen if I. .pressed . . . (press) that botton?

22 . He might get fat if he (stop). . stopped. . smoking.

23. If he knew that it was good for his health, he (do). .would do . . .

24. If I knew that you were ill, I (go). . .would go. . to see you.

25. You would be very surprised if he (return). returned. .

26. They would not come to the party if you (not invite). . .didn't invite . . . . them.

27. What would you do if you (be). . . .were . . . . . him?

28. If I spoke English, my job (be)....would be... .. a lot easier.

29. If he (have). . . had. . . . enough money, he would buy a house.

30. If I (be). . .were. . . you, I would tell the truth. thirty first .

31.If I knew his address, I (go). . . . would go . . round and see him.

32. It 's too bad Helen isn' t here. If she (be). .were . . here, she could know what to do.

1. comes
2. find
3. lived
4. arrived
5. will phone
6. would give
7. would
8. can go
9. will have

10. stop

11. were
12. had spoken

13. had listened – would have performed
14. comes – will have

Gạch chân dưới đáp án đúng:
1. If she (come / comes / came / had come) late again, she'll lose her job.
2. I'll let you know if I (find / finds / found / had found) out what's happening.
3. If we (live / lived / would live / had lived) in a town, life would be better.
4. I'm sure he wouldn't mind if we (arrive / arriving / arrived / had arrived) early.
5. We (will phone / would phone / phoned / had phoned) you if we have time.
6. If I won the lottery, I (gave / had given / will give / would give) you half the money.
7. It (will / would / can / may) be a pity if she married Fred.
8. If I'm free on Saturday, I (to go / could go / went / can go) to the mountains.
9. She (will has / had / will have / have) a nervous breakdown if she goes on like this.
10. I know I'll feel better if I (will stop / stopped / stop / had stopped) smoking.
11. If I (am / were / will be / had been) you, I would help him.
12. I could have understood him if he (speaks / spoke / had spoken / would speak) more slowly.
13. He didn't listen to the teacher. If he (listens / listened / has listened / had listened) carefully, he (will performed / would perform / would have performed / had performed) well in the examination.
14. He's waiting for his mother to come back from Chicago. If his mother (come / comes / will come / came) home, he?? đề thiếu

Gạch chân dưới đáp án đúng:
1. If she (come / comes / came / had come) late again, she'll lose her job.
2. I'll let you know if I (find / finds / found / had found) out what's happening.
3. If we (live / lived / would live / had lived) in a town, life would be better.
4. I'm sure he wouldn't mind if we (arrive / arriving / arrived / had arrived) early.
5. We (will phone / would phone / phoned / had phoned) you if we have time.
6. If I won the lottery, I (gave / had given / will give / would give) you half the money.
7. It (will / would / can / may) be a pity if she married Fred.
8. If I'm free on Saturday, I (to go / could go / went / can go) to the mountains.
9. She (will has / had / will have / have) a nervous breakdown if she goes on like this.
10. I know I'll feel better if I (will stop / stopped / stop / had stopped) smoking.
11. If I (am / were / will be / had been) you, I would help him.
12. I could have understood him if he (speaks / spoke / had spoken / would speak) more slowly.
13. He didn't listen to the teacher. If he (listens / listened / has listened / had listened) carefully, he (will performed / would perform / would have performed / had performed) well in the examination.
14. He's waiting for his mother to come back from Chicago. If his mother (come / comes / will come / came) home, he