`1.` The lesson is explained by the teacher.

`-` Cấu trúc thì HTĐ(bị động): S + am/is/are + PII + (by  o)..

`2.` The food is being cooked in the kitchen.

`-` Cấu trúc thì HTTD(bị động): S + am/is/are + being + PII + (by  o)...

`3.` The patients were exmined by the doctor.

`-` Cấu trúc thì QKĐ: S + was/were + PII + (by  o)...

`4.` That noise was made by the boy.

`-` Cấu trúc thì QKĐ: S + was/were + PII + (by  o)...

`5.` English is spoken all over the world.

`-` Cấu trúc thì HTĐ(bị động): S + am/is/are + PII + (by  o)..

`6.` The money was given to him back last Sunday.

`-` Cấu trúc thì QKĐ: S + was/were + PII + (by  o)...

`7.` These exercises can't be done quickly.

`-` Cấu trúc: S + can/may/will... (not) + be + PII + (by  o)...

`8.` The report had been finished by noon by her.

`-` Cấu trúc thì QK hoàn thành: S + had + been + PII + (by  o)...

`9.` We have been disappointed to the movie very much.

`-` Cấu truc thì HTHT(bị động): S + have/has + been + PII + (by  o)...

`10.` The bill has to be paid before the first of the month.

`11.` You will be asked several questions.

`-` Cấu trúc thì TLĐ(bị động): S + will + be + PII + (by  o)...

`12.` He is being held for further questioning now.

`-` Cấu trúc thì HTTD(bị động): S + am/is/are + being + PII + (by  o)...

`13.`  I was promised a bicycle by my parents.

`-` Cấu trúc thì QKĐ: S + was/were + PII + (by  o)...

`14.`  The box has been locked and it can’t be opened.

`-` Cấu truc thì HTHT(bị động): S + have/has + been + PII + (by  o)...

`15.` The dinner had been eaten by them before they had finished the conversation.

`-` Cấu trúc thì QK hoàn thành: S + had + been + PII + (by  o)...

1. The lesson is explained by the teacher.

"Explains" -> Hiện tại đơn: S +is/am/are + PII

The lesson: số ít -> dùng is

2. The food is being cooked in the kitchen.

" Is cooking" -> Hiện tại tiếp diễn: S + is/am/are + being + PII

The food: Ko đếm được -> dùng is

3. The patients were exmined by the doctor.

"Exmined" -> Quá khứ đơn: S + was/were + PII

"The patients" số nhiều -> dùng w"ere"

4. That noise was made by the boy.

"Made" -> Quá khứ đơn: S + was/were + PII

That noise: Ko đếm được -> Dùng was

5. English is spoken all over the world.

Speak -> Hiện tại đơn: S +is/am/are + PII

English: Ko đếm được -> Dùng is

6. The money was given to him back last Sunday.

Gave -> Quá khứ đơn: S + was/were + PII

The money: Ko đếm được -> Dùng was

7. These exercises can't be done quickly

Can + be +PII

8. The report had been finished by noon by her.

Quá khứ hoàn thàn thể bị động: had+been+PII

9. We have been disappointed to the movie very much

(ko chắc chắn)

Hiện  tại hoàn thành

10. The bill has to be paid before the first of the month.

have to  + be +PII

11. You will be asked several questions.

Tương lai đơn thể bị động : will be + PII

12. He is being held for further questioning now

Hiện tại tiếp diễn

13.  I was promised a bicycle by my parents.

Quá khứ đơn

14.  The box has been locked and it can’t be opened

Hiện tại hoàn thành

15. The dinner had been eaten by them before they had finished the conversation.

Quá khứ hoàn thành

16. Was you made laugh a lot by the clown last night?

Quá khứ đơn

17. You were wanted to be done this work now

(Ko chắc chắn)

18. That silly thing shouldn't be done by him.

Should + be + PII

19. Their weapon must be handed in.

20. The president is called every morning.

Hiện tại đơn