16. That box was being opened on Lan's birthday last week 

Giải thích: cấu trúc bị động khi chuyển sang là S + was/were + being + P2/ed + (by O)

17. The file has been copied since you left the company

Giải thích: cấu trúc bị động khi chuyển sang là S + has/have + been + P2/ed + (by O)

18. A pair of shoes has just been bought for my mom

Giải thích: cấu trúc bị động khi chuyển sang là S + has/have + been + P2/ed + (by O)

19. Some food has been sent for my breakfast by him 

Giải thích: cấu trúc bị động khi chuyển sang là S + has/have + been + P2/ed + (by O)

20. I have been advised to go to bed early by the doctor

Giải thích: cấu trúc bị động khi chuyển sang là S + has/have + been + P2/ed + (by O)

21. The painter will be asked to paint my house soon 

Giải thích: cấu trúc bị động khi chuyển sang là S + will/shall + be + P2/ed + (by O)

22. You will be helped tomorrow by his father

Giải thích: cấu trúc bị động khi chuyển sang là S + will/shall + be + P2/ed + (by O)

23. An art exhibition will be organized next month by this company

Giải thích: cấu trúc bị động khi chuyển sang là S + will/shall + be + P2/ed + (by O)

24. An English - speaking Contest will be held next month by Nguyen Hue School

Giải thích: cấu trúc bị động khi chuyển sang là S + will/shall + be + P2/ed + (by O)

25. Some stories are going to be told tonight by my mom

Giải thích: cấu trúc bị động khi chuyển sang là S + am/is/are + going to + be + P2/ed + (by O)

26. Some rice is going to be planted on the farm next month by my father 

Giải thích: cấu trúc bị động khi chuyển sang là S + am/is/are + going to + be + P2/ed + (by O)

27. Their house is going to be sold next year

Giải thích: cấu trúc bị động khi chuyển sang là S + am/is/are + going to + be + P2/ed + (by O)

28. A dog is going to be taken to the park by him

Giải thích: cấu trúc bị động khi chuyển sang là S + am/is/are + going to + be + P2/ed + (by O)

29. I used to be taken to school long ago by my grandmother

Giải thích: cấu trúc bị động khi chuyển sang là S + used to + be + P2/ed + (by O)

30. Tea has to be made with hot water

Giải thích: cấu trúc bị động khi chuyển sang là S + has/have to + be + P2/ed + (by O)

31. English must be learnt to study abroad 

Giải thích: cấu trúc bị động khi chuyển sang là S + must be + P2/ed + (by O)

32. The dam may be destroyed with high pressure water by the flood

Giải thích: cấu trúc bị động khi chuyển sang là S + may be + P2/ed + (by O) 

=>

16. That box was being opened on Lan's birthday last week.

-> bị động QKTD was/were being V3/ed

17. The file has been copied by the managers since you left the company.

-> bị động HTHT have/has been V3/ed

18. A pair of shoes has just been bought for my mom by me.

-> bị động HTHT have/has been V3/ed

19. I have been sent some food for my breakfast by him.

-> bị động HTHT have/has been V3/ed

20. I have been advised to go to bed early by the doctor.

-> bị động HTHT have/has been V3/ed

21. The painter will be asked to paint my house soon./ I will have my house painted by the painter soon.

-> bị động TLĐ will be V3/ed

-> have sth V3/ed

22. You will be helped by his father tomorrow.

-> bị động TLĐ will be V3/ed

23. An art exhibition will be organized by this company next month.

-> bị động TLĐ will be V3/ed

24. An English-speaking Contest will be held by Nguyen Hue School next month.

-> bị động TLĐ will be V3/ed

25. Some stories are going to be told by my mom tonight.

-> bị động is/am/are going to be V3/ed

26. Some rice is going to be planted on the farm by my father next month.

-> bị động is/am/are going to be V3/ed

27. Their house is going to be sold next year.

-> bị động is/am/are going to be V3/ed

28. A dog is going to be taken to the park by him.

-> bị động is/am/are going to be V3/ed

29. I used to be taken to school long by my grandmother ago.

-> bị động used to be V3/ed

30. Tea has to be made with hot water.

-> have/has to be V3/ed

31. English must be learnt to study abroad.

-> must be V3/ed

32. The dam may be destroyed with high pressure water by the flood.

-> may be V3/ed