`25.` The rooms are cleaned by my sister every day.

`→`Bị động với hiện tại đơn : S + am/is/are + VpII + (by O)

`26.` Has the car been repaired by your father?

`→`Câu hỏi bị động với thì HTHT: Have/Has + S + been VpII + (by O) ?

`27.` All flights were cancelled because of fog.

`→`Bị động với quá khứ đơn : S + was/were + VPII + (by O)

`28.` A letter was received.

`→`Bị động với quá khứ đơn : S + was/were + VPII + (by O)

`29.` A new market will be built next year.

`→`Bị động với tương lai đơn : S + will be + VPII + (by O)

`30.` These products have been tested.

`→`Bị động với quá khứ hoàn thành : S + had + been + VpII + (by O)

`31.` The computer is well used by Bill.

`→`Bị động với hiện tại đơn : S + am/is/are + VpII + (by O)

`32.` Newspapers are usually read .

`→`Bị động với hiện tại đơn : S + am/is/are + VpII + (by O)

`33.` Are books often read in the library by you?

`→`Câu hỏi bị động với hiện tại đơn : Am/Is/Are + S + VpII + (by O) ?

`34.` Her test is well done.

`→`Bị động với hiện tại đơn : S + am/is/are + VpII + (by O)

25. The rooms are cleaned by my sister every day

26. Has the car been repaired by your father?

27. All flights were cancelled because of fog

28. A letter was received

29. A new market will be built next year

30. These products have been tested

31. The computer is well used by Bill

32. Newspapers are usually read 

33. Are books often read in the library by you?

34. Her test is well done by her

*Cấu trúc bị động:

QKĐ: S + was/ were + PP + (by O)

HTĐ: S + am/ is/ are + PP + (by O)

HTTD: S + am/ is/ are + being + PP + (by O)

HTHT: S + have/ has + been + PP+ (by O)

TLĐ: S + will be + PP + (by O)