Put these sentences into passive voice:
1. What did he leave for his relatives when he passed away?

What was left for his relatives when he passed away?
2. How many games has the team played?

How many games have been played by the team?
3. When did Columbus take corn to Europe? (xem lại đề câu này giúp mình)
4. When did they discover aspirin from trê bark?

When was aspirin discovered from tree bark?
5. How can they take this Christmas tree home?

How can this Christmas tree be taken home?
6. What are you discussing?

What is being discussed?
7. How did the police find the lost man?

How was the lost man found by the police?
8. Who looked after the children for you?

By whom were the children looked after?
9. How long have they waited for the doctor?

How long has the doctor been waited for?
10. What time can the boys hand in their papers?

What time can the boys' papers be handed in?

6. we had had a look around the shops, we had snack

7. worked than the light failed

had they worked than the light failed

had they worked when the light failed

8. happier than ever

9. I went to the zoo last year, I hadn't seen a real tiger before

14. they had got ready, they went out for dinner

15. Andrew found the test very easy, he had done it

16. we were watching television, a burglar broke into the house

17. After the stewardess had served lunch for passengers, she sat down

18. arriving at the airport, I saw that wanted man

19. came home, he had had lunch in this restaurant

20. had done my homework, I went to bed

21. because we missed the bus

22. had told him off, I realized I was wrong

23. câu này sai đề nha, ko viết lại với by the time được

24. had considered what to study, I decided to major in Math

25. After she had written a letter, she went to bed

26. Before he bought the radio, he had checked the price

27. was skiing in Switzerland, he met his old friend Ken

37D 38C 39A 40B

/z/: rooms, beds, televisions, windows, tablecloths, tables, cookers, photos, attics, shelves, dogs, pictures, villas, chairs, walls

/s/: apartments, chopsticks, parents, toilets

/iz/: fridges, sandwiches, houses, boxes, classes, dishes, vases, wishes

1D 2D 3C 4B

1A 2B 3A 4C 5B

1D 2B 3A 4B 5D 6B 

You should have the dentist check your teeth soon.

-> You should have your teeth checked soon.

1. asthma

2. sore

3. temperature

4. cold

5. allergy

6. cough

7. toothache

8. nghĩ ra mấy từ mà k khớp với từ hàng dọc, để coi đã nha =)))))