III.

1. The robbers have just been arrested by the police.

2. A new hospital has been built near the airport.

3. Those letters haven already been typed before noon.

4. That cake has been made by my mother.

5. The dinner has just been prepared.

6. My books have been taken away.

7. A lot of money has been spent for the trip.

8. Many mistakes have been made in his writing.

9. These jobs have been finished.

10. Have the windows of my class been changed?

IV.

1. The girl who had never met the man before fell in love with  him.

2. Here are the exercises which you must do today.

3. Children like the books which have coloured pictures.

4. The noise which he made woke everybody up.

5. The children who didn't know the woman smiled at her.

6. The books which I need can't be found in the library.

7. The students who were punished by the teacher are lazy.

8. The man who is my relative is a famous singer.

VII.

1. D

2. C

3. D

4. C

5. A

6. A