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3. Grammar and writing are taught by her.
4. Thu is elected as the leader of the group.
5. My friends will be seen in the class.
6. Lan's brother was bought some comic books by her.
7. Video games have been played by the students on the weekend.
8. He has already been sent to another office by the boss.
9. The house hasn't been cleaned by them for weeks.
10. The children have been threatened by Tim before.
11. Some of my books can be taken away by you.
12. The windows have just been opened by him.
13. A lot of things must be done to clean up this river by them.
14. That course hasn't been taught by Professor River this semester.
15. My house isn't being painted by them.

16. This paper is read by millions of people everyday.
17. Has the date of the meeting been changed by them?
18. I am taken to school by my father every day.
19. Money at the bank is usually changed by them.
20. My money was stolen from my purse this morning.
21. This kind of work has never been done by Maria before.
22. This church was built in 1973.
24. His story isn't believed.
25. She is being followed.
26. I was asked many difficult questions.
27. My piano is being repaired by them.