Điền ''if'' hoặc ''unless'' vào chỗ trống

1. He won't speak French...unless....he goes to France

2.I'll go to the door......if....... I hear the bell

3.He wouldn't have waited....if.......you'd been late

4. ......unless...........you ring the bell,the servant won't come

5.He will come.....if........you ring the bell

6. ..........if........he wrote to me ,I would write to him

7. He would have come .....if......you had rung

8.He would come .......if........you rang

9. .........Unless.......he started immediately,he would arrive by midday

10. ........if...................you send a telegram now,he will get it this evening

1. He won't speak French...unless....he goes to France

2.I'll go to the door......if....... I hear the bell

3.He wouldn't have waited....if.......you'd been late

4. ......unless...........you ring the bell,the servant won't come

5.He will come.....if........you ring the bell

6. ..........if........he wrote to me ,I would write to him

7. He would have come .....if......you had rung

8.He would come .......if........you rang

9. .........Unless.......he started immediately,he would arrive by midday

10. ........if...................you send a telegram now,he will get it this evening

Make conditional sentences without conjunctions.

1. If I were you, i'd accept the job.

were i you, i'd accept the job

2. If you had told me that he never paid his debts, I wouldn't have rung you.

had you told me that he never paid his debts, i wouldn't have rung you

3. If he had known your telephone number he would have rung you.

had he known your telephone number, he would have rung you

4. If it were nice, we would go for a walk.

were it nice, we would go for a walk

5. I would come to her wedding if I were invited.

were i to be invited, i'd come to her wedding

6. Would you visit me if I were sent to prison?

would you visit me were i be sent to prison?

7. Would you have written to her if you had known her address?

would you have written to her had you known her address?

8. What would you do if today were a holiday?

what would you do were today a holiday?

9. If they had asked me I would have helped them.

had they asked me i'd have helped them

10. Scientists think that men could live on the moon if there were air and water on it.

scientists think that men could live on the moon were there air and water on it

Make conditional sentences without conjunctions.

1. If I were you, i'd accept the job.

2. If you had told me that he never paid his debts, I wouldn't have rung you.

3. If he had known your telephone number he would have rung you.

4. If it were nice, we would go for a walk.

5. I would come to her wedding if I were invited.

6. Would you visit me if I were sent to prison?

7. Would you have written to her if you had known her address?

8. What would you do if today were a holiday?

9. If they had asked me I would have helped them.

10. Scientists think that men could live on the moon if there were air and water on it.

Make conditional sentences without conjunctions.

1. If I were you, i'd accept the job.

=>Were i you, i'd accept the job

2. If you had told me that he never paid his debts, I wouldn't have rung you.

=>Had you told me that he never paid his debts, i wouldn't have rung you

3. If he had known your telephone number he would have rung you.

=>Had he known your telephone number, he would have rung you

4. If it were nice, we would go for a walk.

=>Were it nice, we would go for a walk

5. I would come to her wedding if I were invited.

=>Were i to be invited, i'd come to her wedding

6. Would you visit me if I were sent to prison?

=>Would you visit me were i be sent to prison?

7. Would you have written to her if you had known her address?

=>Would you have written to her had you known her address?

8. What would you do if today were a holiday?

=>What would you do were today a holiday?

9. If they had asked me I would have helped them.

=>Had they asked me i'd have helped them

10. Scientists think that men could live on the moon if there were air and water on it.

=>Scientists think that men could live on the moon were there air and water on it

Make conditional sentences without conjunctions.

1. If I were you, i'd accept the job.

were i you, i'd accept the job

2. If you had told me that he never paid his debts, I wouldn't have rung you.

had you told me that he never paid his debts, i wouldn't have rung you

3. If he had known your telephone number he would have rung you.

had he known your telephone number, he would have rung you

4. If it were nice, we would go for a walk.

were it nice, we would go for a walk

5. I would come to her wedding if I were invited.

were i to be invited, i'd come to her wedding

6. Would you visit me if I were sent to prison?

would you visit me were i be sent to prison?

7. Would you have written to her if you had known her address?

would you have written to her had you known her address?

8. What would you do if today were a holiday?

what would you do were today a holiday?

9. If they had asked me I would have helped them.

had they asked me i'd have helped them

10. Scientists think that men could live on the moon if there were air and water on it.

scientists think that men could live on the moon were there air and water on it

1.would type 11.had

2.knew 12.would grow

3.would look 13.got

4.wouldn't make 14.painted

5.were 15.weren't

6.had 16.would come

7.won 17.rang

8.would you do 18.didn't rain

9.knew 19.was

10.wouldn't come 20.improved

21. would you do

Exercise 6 : Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she 2.If you_____to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. Would have listened 3.If you don’t know how to spell a word, you_____ look it up in the dictionary. A. must B. will C. should D. ought 4.If the sun _____, we _____for a walk. A. shines / will go B. shone / will go C. shone / would go D. had shone / would go 5.The campfire _____ if it _____ last night. A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains 6.But for our parents, we _____ successful in life. A. will never be B. would never be C. wouldn’t have be D. would have never been 7.If I _____ my wallet at home this morning, I _____ money for lunch now. A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had 8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do. A. were / would know B. is / will know C. had been / would have known D. was / would know 9.If we _____ the plans carefully, we would not have had so many serious mistakes. A. study B. had studied C. studied D. were studying 10.I will never talk to you again _____ you apologize me _____ your being rude. A. if / for B. unless / for C. or / of D. whether / or 11._____if you work harder, you will be sacked. A. Whether B. If C. However D. Unless 12.I think you should stop smoking. A. If I am you, I will stop smoking. B. If I were you, I will stop smoking. C. If I were you, I would stop smoking. D. If I had been you, I would stop smoking. 13.If you take the ice out of the fridge, it _____. A. vaporizes B. melts C. heats D. disappears 14.We should do something to protect water from being polluted _____we will have nothing to drink in the future. A. if B. whether C. or D. unless 15.Let’s knock on their door to see _____home. A. if they’re B. unless they’re C. whether they were D. if they were 16.Unless we _____more snow, we can’t go skiing. A. will have B. have C. have had D. had 17.You’ll fail the exam _____ you start revising. A. if B. until C. when D. unless 18.Unless you wash the car, you _____not drive it at the weekend. A. would B. could C. have to D. may 19.If Peter _____his car before the drive, he _____the problem of out of petrol. A. checked / will not get B. had checked / would not have got C. checks / will not have got D. would be checking / will not have got 20.He stepped on the mine, and it exploded. A.If he doesn’t step on the mine, it doesn’t explode. B.If he doesn’t step on the mine, it won’t explode. C.If he didn’t step on the mine, it wouldn’t explode. D.If he hadn’t stepped on the mine, it wouldn’t have exploded. 21. In my experiments, the liquid is cooled to 32ºF. It always freezes. A.If you cool the liquid to 32 degrees, it froze. B.If you cooled the liquid to 32 degrees, it would freeze. C.If you cool the liquid to 32 degrees, it will freeze. D.If you had cooled the liquid to 32 degrees, it would have frozen. 22.It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled. A. If it rains, the match is cancelled. B. If it rains, the match will be cancelled. C. if it rained, the match would be cancelled D. If it had rained, the match would have been cancelled. 23.Unfortunately, I don’t know Philosophy, so I can’t answer your question. A.If I know Philosophy, I can answer your question. B.If I know Philosophy, I will be able to answer your question. C.If I knew Philosophy, I would be able to answer your question. D.If I had known Philosophy, I would have been able to answer your question. 24._____ there are some more ideas, we can end the meeting now. A. If B. As if C. Unless D. In case 25.If he _____with us now, he _____ the beauty of nature of the National Park. A. is / can enjoy B. was / will enjoy C. has been / would enjoy D. were / could enjoy 26.If they had searched more carefully, they...the watch sooner. A. will find B. would find C. found D. would have found 27.If I had got up early, I _____ to have breakfast now. A. have B.I had C. would have D. would have had 28.I cannot buy a new computer _____ I save enough money. A. if B. even if C. unless D. as if 29.Most people you meet will be polite to you _____. A. if you are polite to them B. if you will be polite to them C. unless you are polite to them D. if you were polite to them 30.If you do so, it _____ the matter worse. A. makes only B. would only make C. will only make D. had only made 31.You _____ English fluently unless you practice it every day. A. will speak B. will not speak C. can speak D. did not speak 32.Hurry up _____ you will miss the bus and be late for school. A. if B. and C. or D. as 33.You will get a good seat if you _____ first. A. come B. came C. have come D. will come 34.Sam will not graduate_____. A. if he passed all the tests B. if he does not pass all the tests. C. unless he passes all the tests D. unless he had passed all the tests. 35.If I had time, I would go with you. A.I am free and surely go with you. B.I am too busy to go with you. C. I will go with you because I have time. D. I am free enough to go with you. 36.If Margaret hadn’t been wearing a seat belt, she.... Injured. A. has been B. would has been C. would be D. would have been 37.If I _____ the rain yesterday, I_____ ill. A. had not caught / would have been B. had not caught / would have not been C. have not caught / were not D. have not caught / would have been 38.He looked frightened as if he _____ a ghost. A. sees B. is seeing C. has seen D. had seen 39.What _____if there _____ a serious nuclear accident. A. will happen / was B. happens / were C. would happen / were D. would happen / had been

Lần sau bn vt thì cách ra cho dễ nhìn nhé~~~~

Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she

2.If you_____to me, you wouldn’t have got so much trouble.

A. listened B. would listen C. had listened D. Would have listened

3.If you don’t know how to spell a word, you_____ look it up in the dictionary.

A. must B. will C. should D. ought

4.If the sun _____, we _____for a walk.

A. shines / will go B. shone / will go C. shone / would go D. had shone / would go

5.The campfire _____ if it _____ last night.

A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains

6.But for our parents, we _____ successful in life.

A. will never be B. would never be C. wouldn’t have be D. would have never been

7.If I _____ my wallet at home this morning, I _____ money for lunch now.

A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had

8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do.

A. were / would know B. is / will know C. had been / would have known D. was / would know

9.If we _____ the plans carefully, we would not have had so many serious mistakes.

A. study B. had studied C. studied D. were studying

10.I will never talk to you again _____ you apologize me _____ your being rude.

A. if / for B. unless / for C. or / of D. whether / or

1 we did not visit the museum because we had no time

a if we have time , we will visit the museum

b if we had time , we would visit the museum

c if we had had time , we would have visited the museum

d if we had had time , we will visit the museum

2 he looked frightened as if he ................

a ghost a sees b is seeing c has seen d had seen

3 ........... resigned , we would have been forced to sack him

a had he not b had not he c he had not d he not had

4 if you ................ me about the bad service , we’d have eaten there

a did not tell b would not have told c had not told d had told

5 the teacher was absent today, so class was canceled . if she ........... absent again tomorrow , class ........ tomorrow,too

a is/will cancel b is / will be canceled c was / would be canceled d was/ would cancel

6 if you .................. to my advice in the first place , you............... in this mess right now

a listen/will be b had listened / would not have been c will listened / would not be d had listened/ would not be

7 if i had been absent from class yesterday , i ............. the math test

a would missed b would have missed c will miss d miss

8 if you ............... here earlier , you ............. her

a had come / would have met b come / meet c came / would meet d comes will meet

9 i think you should stop smoking

a if i am you , i will stop smoking

b if i were you , i will stop smoking

c if i were you , i would stop smoking

d if i had been you , i would stop smoking

10 if i were , i would work harder

a you would rather not work so hard

b you should work harder

c you should work with me

d do not work so hard

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

Conditional Sentence Type II :

1/ He (come) would come if you waited.

2/ If you (ring) rang the bell, the servant would come.

3/ If it (not, rain) didn't rain a lot, the rice crop wouln’t grow.

4/ If today (be) were Sunday, we wouldn’t have to work

5/ You would have to stay in bed unless your health (improve) improved.

6/ If I (have) had a typewriter, I could type it myself.

7/ What (you do) would you do if you got fat ?

Conditional Sentence Type III:

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

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

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

4/ If I had known that the baby was hungry, I (feed) would have fed him.

5/ If she had had your address, she (write) would have writen to you.

6/ If she (write) had writen more carefully, she might not have made too many mistakes.

EX. Chia đt trong ngoặc
1. If you (go) go away, please write to me.
2. If you (be) had been in, I should have given it to you.
3. If you (eat) eat another cake, he will be sick.(có sai chủ ngữ ko vậy?)
4. I (not do) wouldn't do that if I (be) were you.
5. If he (take) takes advice, everything can go well.
6. I'd have come sooner If I knew you were here.
7. he never docs homework. If he (do) his homework. ???
8. If you played for us, we (win) would win.
9.What will you (do) do If she refuses your invitation?
10. If today (be) is Sunday, we(go) will go to the beach.
11. Unless they (pass) passed their examinations, they would join the army.
12. You (be)will be ill If you drink that water.
13.If Tom (go) went to bed earlier, he would not be so tired.
14. Had we known your address, we (Write) would have written you a letter
15.If it's raining heavily, we (not go) won't go for a donkcy ride.
16. If he (try) tries hard, he'll pass the examination.
17. I could understand the teacher if she (speak) spoke more sÌowly.
18.If she (not be) hadn't been busy, she would have come to the party.
19. If I (finish) finish the work now, l(go) will go to the football game.
20. If you( see) see Mary today, please (ask) ask her to call me

EX. Chia đt trong ngoặc.
1. If you (go) go away please write to me. (ĐK loại 1)
2. If you (be) had been in, I should have given it to you. (ĐK loại 3)
3. If you (eat) eats another cake, he will be sick. (ĐK loại 1)
4. I (not do) wouldn't do that if I (be) were you. (ĐK loại 2)
5. If he (take) takes advice, everything can go well. (ĐK loại 1)
6. I'd have come sooner If I know you were here.

Câu này sai thì pải!

Sửa: I know \(\rightarrow\) I had known (ĐK loại 3)
7. He never does homework. If he (do) did his homework. (ĐK loại 2)
8. If you played for us, we (win) would win. (ĐK loại 2)
9. What will you (do) do If she refuses your invitation? (ĐK loại 1)
10. If today (be) were Sunday, we (go) would go to the beach. (ĐK loại 2)
11. Unless they (pass) passed their examinations, they would join the army. (ĐK loại 2)
12. You (be) will be ill If you drink that Water. (ĐK loại 1)
13. If Tom (go) went to bed earlier, he would not be so tired. (ĐK loại 2)
14. Had we known your address, We (write) would have written you a letter. (ĐK loại 3)
15. If it's raining heavily, we (not go) won't go for a donkcy ride. (ĐK loại 1)
16. If he (try) tries hard, he'll pass the examination. (ĐK loại 1)
17. I could understand the teacher if she (speak) spoke more slowly. (ĐK loại 2)
18. If she (not be) hadn't been busy, she would have come to the party. (ĐK loại 3)
19. If I (finish) finish the work now, I (go) will go to the football game. (ĐK loại 1)
20. If you( see) see Mary today, please ( ask) ask her to call me. (ĐK loại 1)

Good luck!

1. go
2. Ihad been
3. eats
4. wouldn't do / were
5. takes
6. I had known

7. did
8. would win
9. will / do
10. were / would go
11. passed
12. will be
13. went
14.would have written
15. won't go
16. tries
17. spoke
18. hadn't been
19. finish / will go
20. ask