S1 + V1 + that + S2 + V2 

→ S2 + be + V3/ed (V1) + to + V1 (cùng thì)

→ S2 + be + V3/ed (V1) + to have + V3/ed (khác thì)

→ It is + V3/ed (V1) + that + S2 +V2

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Bị động - các thì:

- Thì QKĐ: 

(+) S + was/were + V3/ed

(?) Was/Were + S + V3/ed?

- Thì HTHT: 

(+) S + has/have + been + V3/ed

(?) Has/have + S +been + V3/ed?

- Thì HTTD: S + am/is/are + being + V3/ed

- Thì QKHT: S + had been + V3/ed

- S + used to be+ V3/ed 

- S + has/ have / had to + be + V3/ed 

- S + need + Ving / to be + V3/ed

- S + ought to be + V3/ed 

- Thì HTĐ: S + am/is/are + (not) + V3/ed 

- S + must be + V3/ed 

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Bài 1:

1. A dancing class was started last week.

2. The accident was seen by Mr. Smith.

3. My briefcase has been taken.

4. Our written work was returned to us by the teacher.

5. The report has been finished by noon.

6. The little boy was bitten by the mad dog.

7. Five suspects have been arrested by the police.

8. He was ordered to take a long rest by the doctor.

17. The streets are being swept.

18. The mail had already been delivered by the mailman.

19. My pen used to be borrowed.

20. His work had to be finished on time.

21. All the homework needn't doing.

22. He ought to be told early.

23. The room isn't used very often.

24. The road must be widened to school this year.

25. Has your homework been done?

26. Was your work finished early?

27. Fruit has to be picked very early in the morning.

29. The baby girl is being taken care of.

Bài 2:

1. I was told to be the best architect in this city.

2. The flowers were reported to be killed by frost.

3. The meeting was announced to be delayed by that officer until next week.

 `color{orange}{~LeAiFuRuiHuiBao~}`