83. Milk bottles are used for recycling
84. These rooms are cleaned by my sister everyday
85. A lot of pollution has been caused by wastes.
1. When is his homework usually done by him
2. This tree was planted by my father.
3. The rubbish hasn't been collected by him
4. Is recycled paper being used by people
5. We are made to work hard every day
6. How can our fields be kept in good condition
7. John's father usedto be asked a lot of questions by him when he was a child.
8. He is said to return the book next week.
9. He wasn't helped to do his homework.
10. I am thought to be very intelligent
11. All the switches should be turned off before leaving the workshop
12. By whom was this poem written
13. Everything is believed to be easy to be done by her.
14. I am made to do everything by her.
15. This room ius used very often by us
16. He is thought to know English well
17. Cars aren't made here
18. He is believed to be studying in HN
19. Many novels have been written by her.
20. That computer is made by a company
21. A new bridge has been built
22. A lot of souvenirs were bought for you
23. What language can be spoken by you
24. You will be asked several questions by them
25. The box has been locked by somebody and I can't open it
26. The presidents is called by somebody every morning
27. Food is being carried to the flood region by airplanes now.
28. This sewing machine can be repaired by Na,
29. We are advised not to go out alone
30. The robbers ought to be put in prison by the police.
31. Her handbag had been checked
32. All the questions on the paper will be answered by you
33. Many buildings have been destroyed by the earthquake
34. A tiger has just been killed by him
35. Lan is being made a dress by her mother
36. Mrs. Quyen was seen to leave her house at 9 o'clock
37. This work must be finished by Mr.Lam before June
38. A new TV is going to be bought by my parents tomorrow
39. Peter hasn't been seen by us yet
40. The fence is being painted by Nam and Ba
41. A story book is read by Hoa after dinner.
42. A new school was being built here when we came
