1. My room is cleaned by me every day.
2. A nice present was bought by Tom yesterday.
3. A beautiful song will be sung by Ann.
4. My computer was repaired by Ben yesterday.
5. A tasty cake is being made by my sister now.
6. Tickets to the concert have been bought by us.
7. French is taught by Helen at school.
8. Strawberries are grown by them every year.
9. An SMS was sent to his friend by Tim.
10. A test has been written by her today.
11. That museum was visited by them yesterday.
12. A football match is being watched by me now.
13. The keys have been found by Pam in the table.
14. The clothes are being washed by Mona now.
15. A lot of mistakes have been made by you.
16. Sandwiches will be brought by Bill.
17. Lectures are attended by them every day.
18. The relatives are being met by us now.
19. This text will be copied by him.
20. A new car has been bought by him.
21. Volleyball is being played by us now.
22. The rule was explained by our teacher.
23. The texts are translated by her every day.
24. A comedy film is being watched by her now.
25. The candle was put on the table by him.
26. A new ring has been bought by Pam recently.
27. The mistakes will be corrected by him.
28. A beautiful present has been got by me.
29. The vase was dropped by the cat yesterday.
30. The piano is being played by me now.
31. The TV set has been turned off by him.
32. E-mails are received by us every day.
33. An ice-cream is being eaten by Nick now.
34. Money will be lent to her friend by her.
35. Paris is visited by me every year.
36. The report has already been prepared by him.
**Giải thích:**
- Để chuyển một câu từ thể chủ động sang thể bị động, ta cần xác định chủ ngữ, động từ và tân ngữ trong câu chủ động.
- Sau đó, tân ngữ sẽ trở thành chủ ngữ trong câu bị động, động từ sẽ được chia theo thì phù hợp và thêm "by" để chỉ ra ai thực hiện hành động (nếu cần thiết).
- Các thì được sử dụng trong câu bị động được xác định dựa trên thì của câu chủ động.