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1. I didn't know that you were in hospital, so I didn't visit you.
If I had known tha you were in hospital, I would have visited you.
2. Hurry up or you will be late
If you don't hurry up, you will be late.
3. She is very busy, so she can't help me now
If she weren't very busy, she could help me now.
4. He didn't phone me because he didn't know my phone number
If he had known my phone number, he would have phoned me.
5. You're unfit because you don't take exercise
If you took (more) exercise, you would be fit/ wouldn’t be unfit.
6. Unless you are careful, you will cut yourself with that knife
If you are not careful, you’ll cut yourself with that knife
7. If i have time, I'll help you. => Unless. I have time, I won’t help you.
......
8. Dick often causes accidents because he drives carelessly
If he had studied his lessons very carefully, he wouldn’t get bad marks now.
9. I can't apply for that job because I don't know English
If Dick drove carefully, he wouldn’t cause accident (often)
10. He didn't study his lessons very carefully, so he gets bad marks now
If I knew English, I could apply for that job.
11. Susan is overweight because she eats too much chocolate
If Susan ate less chocolate, she wouldn’t be overweight
12. His father often punishesvhim for his laziness
If he weren’t lazy, his father wouldn’t punish him (often).
13. Study harder or you'll fail in the next exam
Unless you study harder, you'll fail in the next exam.
14. We did not visit the museum because we had no time
If we had had time, we would have visited the museum.
15. Without Jack's help, I wouldn't have been able to move the table
If Jack hadn't helped, I wouldn't have been able to move the table.
1. I didn't know that you were in hospital, so I didn't visit you.
If I had known tha you were in hospital, I would have visited you.
2. Hurry up or you will be late
If you don't hurry up, you will be late.
3. She is very busy, so she can't help me now
If she weren't very busy, she could help me now.
4. He didn't phone me because he didn't know my phone number
If he had known my phone number, he would have phoned me.
5. You're unfit because you don't take exercise
If you took (more) exercise, you would be fit/ wouldn’t be unfit.
6. Unless you are careful, you will cut yourself with that knife
If you are not careful, you’ll cut yourself with that knife
7. If i have time, I'll help you.
Unless. I have time, I won’t help you.
8. Dick often causes accidents because he drives carelessly
If he had studied his lessons very carefully, he wouldn’t get bad marks now.
9. I can't apply for that job because I don't know English
If Dick drove carefully, he wouldn’t cause accident (often)
10. He didn't study his lessons very carefully, so he gets bad marks now
If I knew English, I could apply for that job.
11. Susan is overweight because she eats too much chocolate
If Susan ate less chocolate, she wouldn’t be overweight
12. His father often punishesvhim for his laziness
If he weren’t lazy, his father wouldn’t punish him (often).
13. Study harder or you'll fail in the next exam
Unless you study harder, you'll fail in the next exam.
14. We did not visit the museum because we had no time
If we had had time, we would have visited the museum.
15. Without Jack's help, I wouldn't have been able to move the table
If Jack hadn't helped, I wouldn't have been able to move the table.
1. I would be surprised if Ann came to see us now.
2. If we had enough money,we would go on holiday
3. Unless you do these exercises more carefully, you will fail the exam.
4. If I knew the answer, I could tell you.
5. If she knew French, she could apply for the job
6. Unless she cam here now, we'd come back home
7. Unless you are careful, you will be able to get the job
8. If it rains soon, the tree won't die
* Rewrite the sentences.
1. It is late now; I don't think Ann will come to see us.
-> I would be surprised if __________Ann came to see us________.
2. We don't go on holiday because we don't have enough money.
-> If _________we had enough money, we would go on holiday_________.
3. Do these exercises more carefully or you will fail the exams.
->Unless_________you do these exercises more carefully, you will fail the exams_________.
4. I do not know the answer so I cannot tell you.
-> If _________I knew the answer, I could tell you_________.
5. She can't apply for the job because she doesn't know Frencj.
-> If she knew__________Frencj, she could apply for the job________.
6. If she didn't come here now, we'd come back home.
-> Unless__________she came here now, we'd come back home________.
7. Be careful or you will not be able to get the job.
-> Unless__________you are careful, you won't be able to get the job________.
8. The trees will die unless it rains soon.
-> If_________it doesn't rain soon, the trees will die_________.
1. If my parents allowed me to go, I wouldn't have to stay at home.
2. If the computer hadn't broken down, I wouldn't have had to stop my work.
3. If she didn't love him, she wouldn't forgive he easily.
4. If you had often talked to them, they would have understood you.
5. If I had had a dictionary, I could have looked the word up.
6. If Sandra had got her camera, she could take a photo.
7. If I didn't have to work tomorrow evening, I would meet you.
8. If it hadn't been raining, we could have had lunch in the garden.
9. If Susan had got a watch, she wouldn't be often late for work.
10. If he didn't smoke forty cigarettes a day, he wouldn't cough a lot.
11. If I had a boat, I would sail around the world.
12. If they had had a garden, they would have grown vegetables.
13. If I had known his address, I would have given it to you.
14. If the doctor hadn't been so late, he could have seen many patients.
III. Rewrite the second sentence in such a way that it has the same meaning as the one before it:
1. You can’t visit the United States unless you get a visa
If you get a visa, you can visit the United States.
2. We didn’t go on holiday because we didn’t have enough money
If we had had enough money, we would have gone on holiday.
3. What a pity you failed your driving test!
I wish you hadn't failed your driving test.
4. I’m sorry I missed your birthday party.
I wish I hadn't missed your birthday party.
5. Unless someone has a key, we can’t get into the house.
We can get into the house if someone has a key.
6. He’s sorry now that he didn’t invite Molly to his party
He wishes he had invited Molly to his party.
7. Unless he phones immediately, he won’t get any information
If he doesn't phone immediately, he won't get any information.
8. Mr. Will lost his job because he was late every day
If Mr. Will hadn't been late every day, he wouldn't have lost his job.
9. My husband didn’t leave the car keys, so I couldn’t pick him up at the station
If my husband had left the car keys, I could have pick him up at the station.
10. He didn’t hurry, so he missed the train
If he had hurried, he wouldn't have missed the train.
11. We didn’t go because it rained
If it hadn't rained, we would have gone.
12. I’m sorry that I didn’t finish my homework last night
I wish I had finished my homework last night.
13. The child will die if nobody sends for a doctor
Unless a person sends for a doctor, the child will die.
14. Susan felt sick because she ate 4 cream cakes
If Susan hadn't eaten 4 cream cakes, she wouldn't have felt sick.
15. Maria didn’t apply for the job in the library and regrets it now
Maria wishes she had applied for the job in the library.
16. John is fat because he eats so many chips
If John didn't eat so many chips, he wouldn't be fat.
17. It’s a pity I didn’t take my doctor’s advice
I wish I had taken my doctor's advice.
18. The accident happened because the train driver ignored a warning light
If the train driver hadn't ignored a warning light, the accident wouldn't have happened.
19. We got lost because we didn’t have a map
If we had had a map, we wouldn't have got lost.
20. Mrs. Taylor doesn’t like living in such a small house
Mrs. Taylor wishes she didn't live in such a small house.
21. If Joe doesn’t change his ways, he will end up in prison
Unless Joe changes his ways, he will end up in prison.
22. If he doesn’t work harder, he’ll lose his job
Unless he works harder, he'll lose his job.
23. Elizabeth got a bad cold because she started smoking cigarettes
If Elizabeth hadn't started smoking cigarettes, she wouldn't have gotten a bad cold.
24. Joan will stay on at school unless she finds a good job before September
If Joan doesn't find a good job before September, she will stay on at school.
1) It is late now; I don't think Ann will come to see us
-> I would be surprised if Ann came to see us.
2)We don't go on holiday because we don't have enough money
-> If we had enough money, we would go on holiday.
3) Do these exercises more carefully or you will fail the exams
-> Unless you do these exercises more carefully, you will fail the exams.
4) I do not know the answer so I can not tell you
-> If I knew the answer, I could tell you.
5) She can't apply for the job because she doesn't know French
-> If she knew French, she could apply for the job.
6) if she didn't come here now, we'd come back home
-> Unless she came here now, we'd come back home.
7) Be careful or you will not be able to get the job
-> Unless you are careful, you will be able to get the job.
8) The trees will die unless it rains soon
-> If it doesn't rains soon, the trees will die.
Ex1. Put the verbs in brackets in the third condition
a) If you (leave)had left that dog alone, it (not bite)wouldn't have bitten you.
b) The cat (not eat)wouldn't have eaten the fish if you (shut)had shut the door
c) If she 9not have0hadn't had a headache, she (come)would have come with us
d) If he (know)had known the whole story, he 9not be0wouldn't have been so angry
e) If I (have)had had a map with me, I (not get)wouldn't have got lost
f) If you (not sneeze)hadn't sneezed he (not know)wouldn't have known that we were there
g) If you(not put)hadn't put too much salt in the soup, we (eat)would have eaten it all
h) I (often)would often to help him if I (realize)had realized that he was ill
i) If you (tell)had told me he never paid his debt, I (not lend)wouldn't have lent him the money
j) If I (know)had known you were coming, I (bake)would have baked a cake
Ex1. Put the verbs in brackets in the third condition
a) If you (leave) HAD LEFT that dog alone, it (not bite) WOULDN'T HAVE BITTEN you.
b) The cat (not eat) WOULDN'T HAVE EATEN the fish if you HAD SHUT (shut) the door
c) If she 9not have0 a headache, she (come) with us
HADN'T HAD / WOULD HAVE COME
d) If he (know) the whole story, he 9not be0 so angry
HAD KNOWN . WOULDN'T HAVE BEEN
e) If I (have) a map with me, I (not get) lost
HAD HAD / WOULDN'T HAVE GOT
f) If you (not sneeze) he (not know) that we were there
HADN'T SNEEZED / WOULDN'T HAVE KNOWN
g) If you(not put) too much salt in the soup, we (eat) it all
HADN'T PUT / WOULD HAVE EATEN
h) I (often) to help him if I (realize) that he was ill
WOULD HAVE OFFERED / HAD REALIZED
i) If you (tell) me he never paid his debt, I (not lend) him the money
HAD TOLD / WOULDN'T HAVE LENT
j) If I (know) you were coming, I (bake) a cake
HAD KNOWN / WOULD HAVE BAKED
1. I haven't got money , so I'm not going on holiday
-> If I haven't got money , I am not going on holiday
2. He often gets bad marks because he is lazy
-> If he lazy , he will often get bad marks
3. Do it now , or you will not finish it on time
-> If you don't do it now, you won't finish it on time
4. Hurry up , or we will be late for the exam
-> If we are not hurry , We will be late for the exam
5. Be quiet , or you will not understand the lesson
-> If you are not be quiet , you will not understand the lesson
6. They do not understand you because you do not often talk to them
-> If you don't talk to them , they won't understand you
7. The office may be closed , so Mark won't be able to get in
-> If the office may be closed , Mark won't be able to get in
8. You can't look the work up because you haven't got a dictionary
-> If you haven't got a book , you can't look the work up
9. He didn't hurry , so he missed the train
-> If he đin't hurry , He would miss the train
10. We canceled our picnic because it rained very hard yesterday
-> If it rained very hard yesterday , we would cancele our picnic
11. I wasn't at home yesterday , I didn't see my old friends
-> If I didn't see my old friends , I would not at home yesterday
12. They don't behave themselves so their parents are not happy about that
-> If their parents are not happy about that, They don't behave themselves
13. She didn't say sorry so she was angry
-> If she was angry , she would not say sorry
14 . It raines last night so I didn't go to the barbecue
-> If I didn't go the the barbecue , It would rain last night
15. She doesn't play attention to her coooking so the food is horrible
-> If the food is horrible , She won't play attention to her cooking
16. The weather was very nice so we didn't go camping
-> If the weather was very nice , we wouldn't go camping
17. The computer broke down and I had to stop my work
-> If the computer broke down , I had stopped my work
18. She love him so she forgives him easily
-> If she love him , she will forgive him easily
Chúc bạn học tốt 
1. I haven't got money , so I'm not going on holiday
- If I had enough money I would go on holiday.
2. He often gets bad marks because he is lazy
-> If he isn't lazy, He will not get bad marks.
3. Do it now , or you will not finish it on time
-> If you don't do it now, you won't finish it on time.
4. Hurry up , or we will be late for the exam
-> If we don't hurry up, we will be late for the exam.
5. Be quiet , or you will not understand the lesson
-> If you weren't quite, you won't understand the lesson.
6. They do not understand you because you do not often talk to them
-> If you often talk to them, they will understand you.
7. The office may be closed , so Mark won't be able to get in
-> If the office are closed , Mark won't be able to get in.
8. You can't look the work up because you haven't got a dictionary
-> If I had a dictionary, I could look the word up.
9. He didn't hurry , so he missed the train
-> If he had hurried , he wouldn't have missed the train .
mấy câu nữa tối làm
Ex1: (Conditionals,I wish,Past Subjunctive) Finish each of the following sentences in such a way that it means the same as the sentences printed before it
1,The only reason Jimmy often gets bad marks is because he is lazy
If Jimmy weren't lazy, he wouldn't often get bad marks.
2,We got lost because we didn't have a map
If we had had a map, we wouldn't have got lost.
3,We didn't go on holiday because we did not have enough money
If we had had enough money, we would have gone on holiday.
4,She didn't hurry,so she missed the train
If she had hurried, she wouldn't have missed the train.
5,I bought beef because I didn't know she couldn't eat it
If I had known she couldn't eat beef, I wouldn't have bought beef.
6,Providing that you leave a forwarding address,we will be able to contact you
Unless you leave a forwarding address, we will be able to contact you.
7,Unless you save some money,you will never be able to buy a car
Provided that you save some money, you will be able to buy a car.
8,The boys don't have any matches,so they can't light the fire
If the boys had some matches, they could light the fire.
Ex1: (Conditionals,I wish,Past Subjunctive) Finish each of the following sentences in such a way that it means the same as the sentences printed before it
1,The only reason Jimmy often gets bad marks is because he is lazy
If Jimmy.....weren't lazy , he wouldn't often get bad marks
2,We got lost because we didn't have a map
If we.....had a map , we wouldn't get lost
3,We didn't go on holiday because we did not have enough money
If we.had enough money , we would go on holiday ...
4,She didn't hurry,so she missed the train
If she.had hurried , she would have missed...
5,I bought beef because I didn't know she couldn't eat it
If I.... had known she couldn't eat beef, I wouldn't have bought beef.
6,Providing that you leave a forwarding address,we will be able to contact you
Unless you leave a forwarding address, we will be able to contact you
7,Unless you save some money,you will never be able to buy a car
Provided that.. you save some money, you will be able to buy a car...
8,The boys don't have any matches,so they can't light the fire
If the boys. had some matches, they could light the fire...