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Đáp án:A
Giải thích: tình huống không có thật ở hiện tại được viết lại bằng câu đk loại 3.
Dịch: Nếu tôi giỏi toán, tôi đã có thể làm giáo viên dạy toán.
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
1.Susan is not good at English.
->Susan learns English badly.
2.Mr.Smith doesn't live on a farm in the countryside anymore.
->He used to live on a farm in the countryside.
3."You should improve your English grammar,Anna"said the teacher.
->The teacher advised Anna to improve her English grammar.
4.Mom started working for that hospital 2 months ago.
->Mom has been working for that hospital for 2 months.
Đáp án C
Giải thích: câu gián tiếp ở dạng câu nghi vấn
Dịch: Những người ngoài hành tinh sẽ trở thành bạn tốt với con người chứ?
Đáp án: C
Giải thích: câu gián tiếp ở dạng câu nghi vấn
Dịch: “Những người ngoài hành tinh sẽ trở thành bạn tốt với con người chứ?” Nick hỏi giáo viên của cậu ấy.
Rewrite these sentences as directed:
1. He doesn't eat fish when he isn't extremely hungry.
=> If he isn't extremely hungry, he doesn't eat fish. ( Điều kiện loại 0 , nêu lên 1 sự thật chắc chắn xảy ra)
2. We didn't hurry, so we were late for the concert.
=> If we had hurried, we wouldn't have been late for the concert.
3. In order to get a driver's license, you must be at least 18 years old.
=> If you want to get a driving license, you must be at lest 18 ys old.
4. A person must have a passport to be able to travel abroad.
=> A person cannot travel abroad unless he/she has a passport.
5. Ann's having a lot of trouble because she lost her passport last week.
=> If Ann hadn't lost her passport lastweek, she wouldn't be having a lot of trouble
6. Tom dosen't do anything if you don't tell him what to do.
=> Unless you tell Tom what to do, he doesn't do any thing.
7. We must take steps to preserve natural resources, or the planet will be in danger.
=> Unless we take steps to preserve natural resources, the planet will be in danger.
8. It's such a pity your sister can't come as well
=> If only your sister could come as well.
9. The soil would become poor unless the farmer added fertilizers.
=> If the farmer hadn't added fertilizers, the soil would have become poor.
10. You probably won't have time, but I'd like you to come and see.
=> If you have time, I'd like you to come and see.
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 
Đáp án A
Giải thích: tình huống không có thật ở hiện tại được viết lại bằng câu điều kiện loại 2.
Dịch: Nếu tôi giỏi Toán, tôi đã có thể làm giáo viên dạy Toán