Question

*Passive voice:
1,She has to tidy the rooms.
->
2,She bought a new car.
->
3,They are doing their homework.
->
4,He can speak English.
->
5,She should wash her own clothes.

->*Passive voice:
1,She has to tidy the rooms.
->
2,She bought a new car.
->
3,They are doing their homework.
->
4,He can speak English.
->
5,She should wash her own clothes.
->

Answer 1

I. 

1. The rooms have to be tidied.

2. A new car was bought. 

3. Their homework are being done.

4. English can be spoken.

5. Her own clothes should be washed.

Answer 2

*Passive voice:
1,She has to tidy the rooms.
->The rooms have to be tidied (by her)
2,She bought a new car.
->A new car was bought (by her)
3,They are doing their homework.
->Their homework is being done (by them)
4,He can speak English.
->English can be spoken (by him)
5,She should wash her own clothes.

->Her own clothes should be washed (by her)

*Cấu trúc câu bị động:

1, Thì quá khứ đơn: S+was/were+PII+(by O)+.......

2, Với V khuyết thiếu: S+V khuyết thiếu+be+PII+(by O)+.....

3, Thì hiện tại tiếp diễn: S+is/am/are+being+PII+(by O)+......

4, Thì hiện tại đơn: S+is/am/are+PII+(by O)+.....

5, Thì quá khứ tiếp diễn: S+was/were+being+PII+(by O)+.......

6, Thì hiện tại hoàn thành: S+has/have+been+PII+(by O)+.......

7, Thì quá khứ hoàn thành: S+had+been+PII+(by O)+.....

8, Thì tương lai đơn: S+will be+PII+(by O)+........

*Các S không xác định như: she, he, they, we, people, I, you,..... ta có thể lược bỏ by O đi khi chuyển sang câu bị động.