Câu 39: We would havegiven you a lift if we’d know you were coming this way.

                     A   B           C                            D

we'd know -> we had known 

Câu 40: I had gone to see you if I’d known that you were ill.

                  A                 B                     C                           D

had gone -> would have gone 

Câu 41:I  think you should ………. up late at night.

A. stayed B. Staying C. stay D. to stay

Câu 42: If I  ……….. again, I think that I would have succeeded.

A. had tried B. tried C. try D. trying

Câu 43: If you feel bored, you should …………. away for a few days.

A. went B. gone C. to go D. go

Câu 44: Water……….down hill if there weren’t gravity.

A. won’t run B. didn’t run C. wouldn’t have run D. wouldn’t run

Câu 45: If I  ................ you, I wouldn’t buy that coat.

A. would be B. was C. were D. Am

Câu 46: What would happen if I…………. that red button.

A. had pressed B. press C. was pressed D. pressed

Câu 47: He will get fat if he ……… smoking.

A. stops B. had stopped C. did stop D. stopped

48. Sally……….the phone if she were in the room now.

A. will answer B. shall answer C. would answer D. answered

49. I wonder where Mai is. She should ________ here by now.

A. be B. is C. to be D. being

1. If I see him , I _will give____ (give ) him a gift.

2. If I had a typewriter, I __would type___ (type) it myself.

3. If I had known that you were in hospital, I __would have visited___ (visit) you.

4. You could make better progress if you _attended____ (attend) class regularly.

5. If I __knew___ (know) his telephone number, I’d give it to you.

6. If you __had arrived___ (arrive) ten minutes earlier, you would have got a seat.

7. If he worked more slowly, he __woudn't make___ (not make) so many mistakes.

8. I shouldn’t drink that wine if I ___were__ (be) you.

9.If I ___find__ (find) a cheap room, I will stay a fortnight.

10. A lot of people __would be_ (be) out of work if the factory closed down.

1. If I see him , I __will give___ (give ) him a gift.

2. If I had a typewriter, I __would type___ (type) it myself.

3. If I had known that you were in hospital, I __would have visited___ (visit) you.

4. You could make better progress if you __attended___ (attend) class regularly.

5. If you ___had arrived__ (arrive) ten minutes earlier, you would have got a seat.

6. If he worked more slowly, he _wouldn't make____ (not make) so many mistakes.

7. If I __find___ (find) a cheap room, I will stay a fortnight.

8. A lot of people __would be___ (be) out of work if the factory closed down.

9. If you had drunk less last night, you (not feel) ___wouldn't have felt______ so bad today.

10. If she (not get) ____didn't get____married at such an early age, she would be at university now.

1. If I see him , I ___will give__ (give ) him a gift.

2. If I had a typewriter, I __would type___ (type) it myself.

3. If I had known that you were in hospital, I __would have visited___ (visit) you.

4. You could make better progress if you __attended___ (attend) class regularly.

5. If you __had arrived___ (arrive) ten minutes earlier, you would have got a seat.

6. If he worked more slowly, he ___wouldn't make__ (not make) so many mistakes.

7. If I ___find__ (find) a cheap room, I will stay a fortnight.

8. A lot of people __would be___ (be) out of work if the factory closed down.

9. If you had drunk less last night, you (not feel) ____wouldn't have felt_____ so bad today.

10. If she (not get) ____didn't get____married at such an early age, she would be at university now.

Exercise 1: Put the verbs in brackets into the correct form:

1.      If I see him , I __will give___ (give ) him a gift.

2.      If I had a typewriter, I __would type___ (type) it myself.

3.      If I had known that you were in hospital, I __would visit___ (visit) you.

4.      You could make better progress if you ___attended__ (attend) class regularly.

5.      If I ___knew__ (know) his telephone number, I’d give it to you.

6.      If you __arrived___ (arrive) ten minutes earlier, you would have got a seat.

7.      If he worked more slowly, he __wouldn't make___ (not make) so many mistakes.

8.      I shouldn’t drink that wine if I __were___ (be) you.

9.      If I ___find__ (find) a cheap room, I will stay a fortnight.

10. A lot of people __would be___ (be) out of work if the factory closed down.

Exercise 1: Put the verbs in brackets into the correct form:

1.      If I see him , I will give (give ) him a gift.

2.      If I had a typewriter, I would type(type) it myself.

3.      If I had known that you were in hospital, I would visit (visit) you.

4.      You could make better progress if you attended(attend) class regularly.

5.      If I knew(know) his telephone number, I’d give it to you.

6.      If you have arrived (arrive) ten minutes earlier, you would have got a seat.

7.      If he worked more slowly, he wouldn't make (not make) so many mistakes.

8.      I shouldn’t drink that wine if I were (be) you.

9.      If I find (find) a cheap room, I will stay a fortnight.

10. A lot of people would be (be) out of work if the factory closed down.

Chúc bn học tốt

Use UNLESS instead of IF.

1. If you are not careful, you will cut yourself with that knife.

UNLESS you are careful, you will cut yourself with that knife.

2. If you do not like this one, I'll bring you another.

UNLESS you like this one, I'll bring you another.

3. I'll not be able to do any work if I do not have a quiet room.

UNLESS I have a quiet room, I'll not be able to do any work

4. If she does not hurry, she'll be late.

UNLESS she hurries, she'll be late.

5. If we had more rain, out crops would be better.

UNLESS we had more rain, out crops wouldn't be better.

6. The crops would be have been ruined in the flood had risen higher.

UNLESS the flood had risen higher, The crops wouldn't be have been ruined

7. If you had not sneezed, he wouldn't have known that we were there.

UNLESS you had sneezed, he wouldn't have known that we were there.

8. If she did her hair differently, she would look quite nice.

UNLESS she did her hair differently, she would look quite nice.

9. If John had played for our football team, we would not have lost the game.

UNLESS John had played for our football team, we would have lost the game.

10. If I won a big prize in a lottery, I'd give up my job.

UNLESS I won a big prize in a lottery, I'd not give up my job.

1 . If I see him, I (give) will give him a gift.

2. If I had a typewriter, I (type) would type it myself.

3. If I had known that you were in hospital, I (visit) would have visited you.

4. You could make better progress if you (attend) attended class regularly.

5. If I (know) knew his telephone number, I’d give it to you.

6. If you (arrive) had arrived ten minutes earlier, you would have got a seat.

7. He could get a job easily if he (have) had a degree.

8. I shouldn’t have believed it if I (not see) hadn't seen it with my own eyes.

9. If he (study) studies hard, he can pass the exam.

10. If she had asked you, you (accept) would you have accepted?

11. Rice plants (grow) will grow well if there is enough rain.

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

13. What you (do) would you do if you found a burglar in your house?

14. If she (not hurry) doesn't hurry, she may be late.

15. If I (try) had tried again, I think that I would have succeeded.

16. Water (not run) wouldn't run downhill if there were not gravity.

17. If I tell you a secret, you (promise) will promise not to tell it to anyone else?

18. Tell him to ring me if you (see) see him.

19. The police (arrest) will arrest him if they catch him.

20. If you (speak) had spoken more slowly, he might have understood you.

II. Use UNLESS instead of IF.

1. If you are not careful, you will cut yourself with that knife.

-> Unless you are careful, you will cut yourself with that knife.

2. If you do not like this one, I’ll bring you another.

-> Unless you like this one, I’ll bring you another. 

3. I’ll not be able to do any work if I do not have a quiet room.

-> Unless I have a quiet room, I’ll not be able to do any work.

4. If she does not hurry, she’ll be late.

-> Unless she hurries, she’ll be late. 

5. If we had more rain, our crops would be better.

-> Unless we had more rain, our crops wouldn't be better. 

6. The crops would have been ruined if the flood had risen higher.

-> Unless the flood had risen higher, the crops wouldn't have been ruined.

7. If you had not sneezed, he wouldn’t have known that we were there.

-> Unless had sneezed, he wouldn’t have known that we were there. 

8. If she did her hair differently, she would look quite nice.

-> Unless she did her hair differently, she wouldn't look quite nice.

9. If John had played for our football team, we would not have lost the game. 

-> Unless John had played for our football team, we would have lost the game. 

10. If I won a big prize in a lottery, I’d give up my job.

-> Unless I won a big prize in a lottery, I wouldn't give up my job.

1. will give

2 would type

3 would have visited

4 attended

5 knew

6 had arrived

7 had

8 had not seen

9 studies

10 would you have accepted

11 will be grown

12 stops

13 would you do

14 doesn't hurry

15 had tried

1 . If I see him, I will give him a gift. 

2. If I had a typewriter, I type it myself. 

3. If I had known that you were in hospital, I will visit you. 

4. You could make better progress if you attend class regularly. 

5. If I have know his telephone number, I’d give it to you. 

6. If you arrive ten minutes earlier, you would have got a seat. 

7. He could get a job easily if he had a degree. 

8. I shouldn’t have believed it if I didn't it with my own eyes. 

9. If he study hard, he can pass the exam. 10. If she had asked you, you accepting? 

11. Rice plants grow well if there is enough rain. 

12. He might get fat if he stop smoking. 

13. What you doing if you found a burglar in your house?

 14. If she didn't hurry, she may be late. 

15. If I had try again, I think that I would have succeeded. 

16. Water not run downhill if there were not gravity. 

17. If I tell you a secret, you will promise not to tell it to anyone else? 

18. Tell him to ring me if you saw him.

 19. The police would arrest him if they catch him. 

20. If you speak more slowly, he might have understood you. II. Use UNLESS instead of IF. 1. If you are not careful, you will cut yourself with that knife. 2. If you do not like this one, I’ll bring you another. 3. I’ll not be able to do any work if I do not have a quiet room. 4. If she does not hurry, she’ll be late. 5. If we had more rain, our crops would be better. 6. The crops would have been ruined if the flood had risen higher. 7. If you had not sneezed, he wouldn’t have known that we were there. 8. If she did her hair differently, she would look quite nice. 9. If John had played for our football team, we would not have lost the game. 10. If I won a big prize in a lottery, I’d give up my job.

Chọn lỗi sai và sửa lại

1. If I (knew )you (were )coming I (would have => would )meet you (at) the airport

2. I (could make )rabbits (disappear) into (thin) air if I (am=>were) a magician

3. (What) (would you have done=> would you done )if you( were )in my position

4. My children( won't go )to bed (unless=> if )they don't (have) (some) money

5. If we( will reduce=>reduce )the speed of( population growth) there will be (less) pressure( on) the earth

6.(had I )knowns (Alice's )address( I would write=> I would have written)( to her)

7.if you( had finished) (the work) you can( go)=> could go( home)

8.(unless )=> ifit (doesn't) rain. Peter will (pay) us( a visit )tomorrow

9.if( had I known=> I had known) you (were) (in) financial difficulty I( would have helped )you

10. If Lucia (had been=> were )here now she( would find out )the truth( about) her (uncle's) accident

13.were i a foreigner, i (pay) .. would pay. a visit to hoi an

14.she (phone) would she.. me were she not to know my house's address

15.you wouldn't have had so many accidents if you (drive) ..had driven. more slowly

16.i (bring) would have brought.. you some beer if i had known that you were thirsty

17.if i had known that you couldn't eat octopus, i (not buy) .would not have bought.. it

18.if you (wear)  had worn.. a false beard, nobodywoul have recognized you

19.if the story hadn't been true , the newspaper (not print) .would  not have printed.. it

20.if you ..had arrrived. (arrive) ten minutes earlier, you would have got a seat

21.had she worked much harder, she (be) .would have been.. home and dry

22.if mary had taken these pills, she (feel) ..would have felt better today

23.if i (finish) .had finished.. the report yesterday, i would go out now

24.you could answer this question if you (go) .had gone.. over your lesson last night

25.if my students (got) had gotten.. up earlier this morning, they would not be late for school

26.that boy (pass).would pass.. the exam now if he had not been addicted to online games

13 would pay

14 would phone

15 had driven

16 would have brought

17 would not have bought 

18 had worn

19 would not have printed

20 had arrived

21 would have been

22 would have felt

23 had finished

24 had gone

25 had gotten

26 would pass

1. Tell

2. don’t change

3. wouldn’t have bought

4. hung

5. would be

6. would have brought

7. would have been

8. wouldn’t have printed

9. wouldn’t buy

10. would drive