1. was built last year

2 mai if she wanted to have some cold drink

3 he had a car

4 learned english for 3 years

5 not big enough for us to live in it together

6 nga what she was doing on summer holiday that year

7 of his broken legs, he managed to get out of the burn

8 thuy studied english hard, she could pass the entrance exam

9 i was sleepy, i still wanted to watch to football match on tv

10 marry if she knew what the time was

11 not been visited vietnam before

12 she lived in such a big house

13 you keep your feet dry, you will catch cold

1. Their new flat was built last year

 - Bị động thì quá khứ đơn: Tân ngữ `->` Chủ ngữ + was/were + P2 + by chủ ngữ (by Lan, by the teacher, by her sister,...)

2. Ba asked Mai whether she wanted to have some cold drink.

 - Câu tường thuật ở dạng câu hỏi Yes/No:

S + wanted to know/asked / asked someone / wondered + if/whether + S + V(lùi thì)

3. Mr. Baker wishes he had a car

 - Cấu trúc WISH ở hiện tại đơn, lùi thì `->` quá khứ đơn.

4. My elder brother has learnt English for 3 years.

 - began/started + V-ing: Bắt đầu làm gì đó (quá khứ) cho đến hiện tại vẫn còn

`->` Viết lại câu với thì Hiện tại hoàn thành.

5, The room was too small for us to live in it together.

6. Tung asked Nga what she was doing on summer holiday that year

- Câu tường thuật với WH-question (when, why, how, what, which,....)

 S + asked/ wanted to know/ asked someone/ wondered + wh-question + S + V(lùi thì)

7. In spite of his broken legs, he managed to get out of the burn

 - Although + S + V(theo thì): mặc dù....

 - In spite of/ Despite + Noun/Noun phrase/ V-ing: mặc dù.

8. If Thuy didn't study English lazily, she would pass the entrance exam.

9. Although i was very sleepy, i still wanted to watch the football match on TV

10, John asked Mary whether she knew what the time was

11. Jane has never visited Vietnam before.

12. My mother wishes she liked living in such a small house.

13. Unless you keep your feet dry, you will catch a cold.

 - Unless = If not.

Học tốt!!!