`10,` The homework is always done very carefully by these students.

`11,` Tim hasn't been seen since Monday.

`12,` That old building is going to be repaired.

`13,` Is a letter writen by your mother?

`14,` How is English learned by yours?

`15,` Hundreds of houses and buildings were destroyed by the storm.

Xin trả lời hay nhất.

Đáp án:

10. The homework is always done very carefully by these students.

11. Tim hasn't been seen since Monday.

12. That old building is going to be repaired.

13. Is a letter being written by your mother ?

14. How is English learned by you ?

15. Hundreds of houses and buildings were destroyed by the storm.

Giải thích:

Cấu trúc chuyển từ chủ động sang câu bị động chung:

(+) S + V + O.

=> S + be + PII ( + by + O ).

(-) S + TĐT + not + V + O.

=> S + be + not + PII ( + by + O ).

(?) ( W/ H ) + TĐT + S + V + O ?

=> ( W/ H ) + be + S + PII ( + by + O ) ?

* Chú ý:

- Cụm từ chỉ nơi chốn đứng trước "by + O", cụm từ chỉ thời gian ngược lại.