1. I have heard her sing this song several times.

=> ......She has been heard to sing this song several times...................

2. People saw him steal your car.

=> ......He was seen to steal your car..................

3. The teacher is watching the work.

=> .........The work is being watched by the teacher..............

4. He won't let you do that silly thing again.

=> ........You won't be let to do that silly thing again.................

5. People don't make the children work hard.

=> .........The children aren't made to work hard ...............

6. They made him work all day.

=> .......He was made to work all day.................

giúp e vs 

He was seen to steal your car

They are being watched to work by the teacher

The children aren't made to work hard

She has been heard to sing this song several times

You won't be let to do that silly thing again

1. I have heard her sing this song this several times.

She has been heard to sing this song several times

2. People saw him steal your car.

He was seen to steal your car

3. The teacher is watching the work.

The work is being watched by the teacher

4. He won't let you do that silly thing again.

You won't be let do that silly thing again. (You won't be allowed to do .....)

5.People don't make the children work hard.

The children aren't made to work hard.

6. They made him work all day.

He was made to work all day

7.The detective saw the woman putting the jewelry in her bag.

The woman was seen putting the jewelry in her bag

8. The terrorists made the hostages lie down.

The hastages were made to lie down by the terrorists.

9. Police advise drivers to use an alternative route.

Drivers are advised to use an alternative route by police

10. She helps me to do all these difficult exercises

I was helped to do all these difficult exercises.

Nguồn yahoo link dài quá không kéo vào được

Chuyển các câu với động từ chỉ nhận thức sau sang câu bị động
1.I have heard her sing this song several times =>She has been heard to sing this song several times.
2.People saw him steal your car =>He was seen to steal your car.
3.The teacher is watching the work => The work is being watched (by the teacher) .
4.He won't let you do that silly thing again =>You won't be let do that silly thing again.
5.People don't make the children work hard =>The children aren't made to work hard.
6.They made him work all day =>He was made to work all day
7.The detective saw the woman putting the jewelry in her bag =>The woman was seen putting the jewelry in her bag
8.The terrorists made the hostages lie down =>The hastages were made to lie down by the terrorists.
9.Police advise drivers to use an alternative route =>Drivers are advised to use an alternative route by police
10.She helps me to do all these difficult exercises =>I was helped to do all these difficult exercises.

1.I have heard her sing this song several times =>She has been heard to sing this song several times.
2.People saw him steal your car =>He was seen to steal your car.
3.The teacher is watching the work => The work is being watched (by the teacher) .
4.He won't let you do that silly thing again =>You won't be let do that silly thing again.
5.People don't make the children work hard =>The children aren't made to work hard.
6.They made him work all day =>He was made to work all day
7.The detective saw the woman putting the jewelry in her bag =>The woman was seen putting the jewelry in her bag
8.The terrorists made the hostages lie down =>The hastages were made to lie down by the terrorists.
9.Police advise drivers to use an alternative route =>Drivers are advised to use an alternative route by police
10.She helps me to do all these difficult exercises =>I was helped to do all these difficult exercises.

Chuyển các câu với động từ chỉ nhận thức sau sang câu bị động

1). I have heard her sing this song several times

-> She has been heard to sing this song several times.

2). People saw his steal your car

-> He was seen to steal your car.

3). The teacher is watching the work

-> The work is being watched by the teacher.

4). He won't let you do that silly thing again

-> You won't be let to do that silly thing again.

5). People don't make the children work hard

-> They children aren't made to work hard.

6). They made him work all day

-> He was made to work all day.

7). The detective saw the woman putting the jewelry in her bag

-> The woman was seen putting the jewelry in her bag by the detective.

8). The terrorists made the hostages lie down

-> The hostages were made to lie down by the terrorists.

9). Police advise drivers to use an alternative route

-> Drivers are advised to use an alternative route by the police.

10). She helps me to do all these difficult exercises

-> I am helped to do all these difficult exercises.

1. I have heard her sing this song several times.
She has been heard to sing this song several times.
2. People saw him steal your car.
 He was seen steal your car
3. The teacher is watching her student do the homework.
Her student is being watched do the homework by the teacher.
4. He won’t let you do that silly thing again.
You won't be allowed to do that silly thing again.
5. People make the children work hard.
The children is made work hard.
6. They made him work all day.
Him work was made  all day.
7. The detective saw the woman putting the jewelry in her bag.
 The woman was seen  putting the jewelry in her bag by the detective.
8. The terrorists made the hostages lie down.
The hostages were made lie down by the terrorists.
9. Police advise drivers to use an alternative route.

Drivers are advised to use an alternative route by the police.
10. She helps me to do all tese difficult exercises.
I am helped to do all tese difficult exercises by her
 

1. I have heard her sing this song several times.
She has been heard to sing this song several times.
2. People saw him steal your car.
 He was seen steal your car
3. The teacher is watching her student do the homework.
Her student is being watched do the homework by the teacher.
4. He won’t let you do that silly thing again.
You won't be allowed to do that silly thing again.
5. People make the children work hard.
The children is made work hard.
6. They made him work all day.
Him work was made  all day.
7. The detective saw the woman putting the jewelry in her bag.
 The woman was seen  putting the jewelry in her bag by the detective.
8. The terrorists made the hostages lie down.
The hostages were made lie down by the terrorists.
9. Police advise drivers to use an alternative route.

Drivers are advised to use an alternative route by the police.
10. She helps me to do all tese difficult exercises.
I am helped to do all tese difficult exercises by her

16. People saw him steal your car.

→He was seen steal your car

17. The teacher is watching them work.

→ They are being watched by the teacher.

18. He won’t let you do that silly thing again.

→You won't be allowed to do that silly thing again.

19. People don’t make the children work hard.

→The children aren't made to work hard.

20. They made him work all day.

→He was made to work all day.

21. The detective saw the woman putting the jewelry in her bag.

→The woman was seen putting the jewelry in her bag by the detective.

22. The terrorists made the hostage lie down.

→The terrorists made the hostage lie down.

23. Police advise drivers to use an alternative route.

→Police advise drivers to use an alternative route.

24. She helps me to do all these difficult exercises.

→She helps me to do all these difficult exercises.

1, I have heard her sing this song several times.

-> She has been heard to sing this song several times by me.

2, People saw him steal your car.

-> He was seen to steal your car.

3, The teacher is watching them work.

-> They are being watched to work by the teacher.

4, He won't let you do that silly thing again.

-> You won't be let to do that silly thing again.

5, Peole don;t make the children work hard.

-> The children aren't made to work hard.

6, They made him work all daay.

-> He was made to work all day.

7, The detective saw the wonman putting the jewerlry in her bag.

-> The woman was seen putting the jewelry in her bag by the detective.

8, The errorists made the hostages lie down.

-> The hostages were made to lie down by the errorists.

9, Police advise drivers to use an alternative route.

-> Drivers are advised to use an alternative route by the police.

10, She helps me do all these dificult exercises.

-> I am helped to do all these difficult exercises by her.

Change the following dentences from active to passive

5.SENTENCES WITH VERBS OF PERCEPTION.

31, I have heard her sing this song several times.

-> She has been heard to sing this song several times by me.

32, People saw him steal your car.

-> He was seen to steal your car.

33, The teacher is watching them work.

-> They are being watched to work by the teacher.

34, He won't let you do that silly thing again.

-> You won't be let to do that silly thing again.

35, Peole don;t make the children work hard.

-> The children aren't made to work hard.

36, They made him work all daay.

-> He was made to work all day.

37, The detective saw the wonman putting the jewerlry in her bag.

-> The woman was seen putting the jewelry in her bag by the detective.

38, The errorists made the hostages lie down.

-> The hostages were made to lie down by the errorists.

39, Police advise drivers to use an alternative route.

-> Drivers are advised to use an alternative route by the police.

40, She helps me do all these dificult exercises.

-> I am helped to do all these difficult exercises by her.