Chuyển các câu sau thành câu bị động 1. I have heard her sing this song several times. 2. People saw him steal your car. 3. The teacher is watching them work. 4. People saw her driving a car near the bridge. 5. Do they hear someone shout ? 6. She helps me do all these difficult exercises. 7. The terrorists made the hostages lie down. 8. He won’t let you do that silly thing again.

1. She has been heard to sing this song several times.

2. He was seen to steal your car.

3. They are being watched working by the teacher.

4. She was seen driving a car near the bridge.

5. Is someone heard to shout?

6. I am helped to do all these difficult exercises

7. The hostages were made to lie down by the terrorists.

- Bị động made: S + was/were + made + toV: bắt buộc

8. You won’t be allowed to do that silly thing again.

- not let sb do sth = (not) be allowed to do sth: (không cho phép)

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Bị động Hiện tại đơn:

- S + am/is/are + (not) + V3/ed + by(O)

Bị động quá khứ đơn:

- S + was/were + (not) + V3/ed + by(O)

Bị động hiện tại hoàn thành:

- S + have/has + been + V3/ed + by(O)