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Tìm lỗi sai và sửa:
1. George now wishes he hasn't broken his engagement with Marian.
Hasn't ➜ Hadn't
2. I would do it if I could, but I can't so I wouldn't even try.
Wouldn't ➜ won't
3. He wouldn't have able to pass the test if his English hadn't been good enough.
Have able ➜ have been able
4. If only we knew all this information about the market many weeks ago.
➞ Đúng
5. My father gave me a watch for my birthday, but I wish he has given me a laptop instead.
Has given ➜ had given
Đây là ý kiến riêng mình nha
Có rì sai bạn bảo nhóe 
1. Were => had been
2. Had done => have done
3. Has => had
4. Will study => study
5. Am = >were
6. Will=> would
7. To => X
8. Unless => If
9. Apply => have applied
10. Will=> would
II. Put the verbs in brackets into the correct form. (conditional sentences type 1, 2)
1. If we (recycle) __recycle___ more, we will help the Earth.
2. Factories (not dump) _won't dump____ waste into rivers if the government fines them heavily.
3. Students will be more aware of protecting environment if teachers __teach___ (teach) environmental issues at school.
4. If light pollution ___happens___ (happen), animals will change their behaviour patterns.
5. If people (travel) ___travel__ to work by bus, there will be fewer car fumes.
6. We ___will save__ (save) thousands of trees if we don’t waste paper.
7. If we use water carefully, more people _will have____ (have) fresh water.
8. The level of radioactive pollution will decrease if we __switch___ (switch) from nuclear power to renewable energy sources.
9. If the water temperature (increase) __increases___, some aquatic creatures will be unable to reproduce.
10. People will get more diseases if the water (be) ___is__ contaminated.
11. If you (be) __were___ the president, what would you do to help the environment?
12. They get sick so often. If they (exercise) __exercised___ more, they (be) ___would be__ healtheir.
13. If I had one million US dollars, I (build) __would build___ more parks in our city.
14. Ngoc’s mother is unhappy. If Ngoc (tidy) __tidied___ her room everyday, her mother (not be) ___would not be__ so upset.
15. There isn’t a garden at our house. If there (be) __were___, we (grow) __would grow___ vegetables.
16. It (not be) ___won't be__ possible to save the Earth if we don’t take action now.
17. If the world temperatures continue to rise, there (be) __will be___ less snow.
18. If I (be) __were___ you, I would wear earplugs when going to the concert.
19. If we do nothing to stop global warming, we (see) __will see___ big changes in the future.
20. How __would___ you ___travel__ (travel) to work if you didn’t have this motorbike?
21. Our garden is so beautiful. There (not be) __wouldn't be___ any flowers if my sister (not take care) ___didn't take care__ it every day.
22. If pigs (have) __had___ wings, __would they be able___ (they/be able) to fly?
23. If I ___were__ (be) an astronaut, I ____would travel_ (travel) to other planets.
24. If you __didn't see___ (not see) Tom ever again, how ___would you feel__ (you/feel)?
25. What __would you do___ (you/do) if you __saw___ (see) a ghost?
26. If you __eat___ (eat) more of this cake, you __will be___ (be) sick. You’ve already had five slices!
27. Who __would you write___ (you/vote) for if you __were be___ (be) eighteen?
28. If you __were be___ (be) late, we ____didn't wait_ (not wait). We’ll have to go without you!
29. If the ozone layer is not protected, we ___will suffer__ (suffer) from excessive ultraviolet radioation.
30. If you ___leave__ (leave) the lights that you are not using on, you’ll cause over-illumination, a form of light pollution.
31. Soil pollution __will be___ a serious problem to solve if levels of pollutants in soil go beyond what should be naturally allowed.(be)
32. If your farming land __is___ near a landfill or an industrial area, it is essential that you test the soil for pollutants before growing anything adible. (be)
33. You will be less likely to suffer lung cancer if you ___don't smoke__. (not smoke)
34. If it is sunny, we _will do____ a clean-up of the garden. (do)
35. If local residents ___keep__ cutting trees for wood at this rate, the forest will soon be gone. (keep)
36. If we take good care of the garden, we _will have____ flowers all year round. (have)
37. If man __keep___ dumping waste into the sea, they will soon be victims. (keep)
38. We’ll go without Linh if she __doesn't come___. (not come)
39. If everyone __makes___ a small contribution, we’ll be able to do a good cause. (make)
#Yumi
IV. Find ONE mistake in each of the following sentences and correct it.
1. If I was an astronaut, I would be really famous in my country.
A. was
B. I
C. be
D. famous
2. Please don't drink this water because it is contaminate.
A. Please
B. drink
C. because
D. contaminate
3. She would like to know how pronounce these Spanish words.
A. would
B. know
C. pronounce
D. words
4. Jack has never be there before, so he is so excited.
A. has
B. be
C. before
D. excited
5. Mr. Smith went to the church to feel relaxed every day.
A. Mr. Smith
B. went
C. church
D. relaxed
I. Finish each of the following sentence so that its meaning stays the same.
1. My father takes care of his children every day.
→ His children are taken care by my father everyday.
2. Water and air play an important role in our life.
→ The important role is played by water and air in our life.
3. When it rains heavily, I cannot go to the market.
→ If it didn't rain heavily, I could go to the market.
4. It has been two years since the last time I saw her.
→ I haven't seen her for 2 years.
5. If you did exercise regularly, you could keep fit.
→ Because you don't do exercise regularly, you cannot keep fit.
1. He can’t go out because he has to study for his exam.
=> If he didn't have to study for his exam, he could go out.
2. She is lazy so she can’t pass the exam.
=> If she weren't lazy, she could pass the exam.
3. He will pay me tonight; I will have enough money to buy a car
=> If he doesn't pay me tonight, I won't have enough money to buy a car.
4. He smokes too much; that’s why he can’t get rid of his cough.
=> If he didn't smoke too much, he could get rid of cough.
5. She is very shy, so she doesn’t enjoy the party.
=> If she weren't very shy, she would enjoy the party.
6. I will get a work permit. I will stay for another month.
=> If I don't get a work permit, I won't stay for another month.
7. He doesn’t take any exercises. He is so unhealthy
=> If he took any exercises, he wouldn't be so healthy.
. 8. We can’t get the ticket because I don’t have the right change.
=> If I had the right change, we could get the ticket.
9. Study hard or you won’t pass the exam.
=> If you don't study hard, you won't pass the exam.
10. Don’t be impatient or you will make mistakes
=> If you are not impatient, you won't make mistakes.
11. I d i d n ’t eat l un ch, I feel h un gry now.
=> If I ate lunch, I wouldn't fell hungry.
12. I only come if they invite me.
=> Unless they invite me, I won't come.
13. He didn’t revise all his lessons, he failed the exam.
=> If he revised all his lessons, he wouldn't failed the exam.
Exercise 9 : Rewrite the following sentences:
1. He can’t go out because he has to study for his exam.
=> If.....he didn't have to study for his exam, he could go out.......
2. She is lazy so she can’t pass the exam.
=> If...........she weren't lazy, she could pass the exam..............
3. He will pay me tonight; I will have enough money to buy a car.
=> If.......he pays me tonight, I will have enough money to buy a car...........
4. He smokes too much; that’s why he can’t get rid of his cough.
=> If..............he didn't smoke too much, he could get rid of his cough...............
5. She is very shy, so she doesn’t enjoy the party.
=> If................she weren't very shy, she would enjoy the party..................
6. I will get a work permit. I will stay for another month.
=> If..............I get a work permit, I will stay for another month
7. He doesn’t take any exercises. He is so unhealthy
=> If.........he took any exercises, he were so healthy....................
8. We can’t get the ticket because I don’t have the right change. => If...........I had the right change, we could get the ticket...............
9. Study hard or you won’t pass the exam.
=> If.......you study hard, you will pass the exam................
10. Don’t be impatient or you will make mistakes.
=> If......you are impatient ,you will make mistake............
11. I did n ’t eat lunch, I feel hungry now.
=> If I.........had eaten luch ,I wouldn't have felt hungry now.............
12. I only come if they invite me.
=> unless..........they invite me ,I won't come..................
13. He didn’t revise all his lessons, he failed the exam.
=> If he........had revised all his lesson, he wouldn't have failed the exam.............
14. The park is over there, only 5 minutes’ walk.
=> If you walk........to the park, it will take 5 minutes..........
15. Leave me alone or I’ll call the police. =>Unless...............you leave me alone , I will call the police...............
16. If you arrive at the office earlier than I do, please turn on the airconditioner.
=>Should...........you arrive at the office earlier than I do, please turn on the airconditioner.................
17. The children don’t go to school in the snowy weather.
=> If it.......snows, the children won't go to school.........
18. He died so young; otherwise, he would be a famous musician by now.
=>Had..............he not died so young, he would have been a famous musician by now...................
19. You must tell me the whole truth or I won’t help you.
=>Unless..........you tell me the whole truth, I won't help you..............
20. The car breaks down so often because you don’t take good care of it.
=>Were I.......took good care of the car, it wouldn't break down so often...........
21. He is very badtempered, that’s why his wife left him soon after marriage. => If he.................weren't badtempered, his wife wouldn't left him soon after marriage................
22. Don’t tell lies to your boss or you’ll be fired at once.
=> If..............you tell lies to you boss, you will be fired at once.......................
23. She got married at such an early age: otherwise, she would be at university now.
=> Had .............she not married at such an early age, she would have been at university now..................