Ex1:
1. Some of my books have been taken away.
2. Football was used to play in the street by the children.
3. She wasn't invited to the party.
4. We were taught to use the passive at school (by him).
5. The workers’ demands have been considered by the boss.
6. We were gave a warm welcome by the villagers.
7. The meals are prepared by my mother everyday.
8. John is believed is the brightest student in the class.
9. You will be sent papers immediately.
10. Our papers are usually corrected at home by the teacher.
11. I am going to be given a new bicycle by my father.
12. A lot of money are spent on advertising every year.
13. Interesting stories were told to the children by the old man.
14. A visit was used to paid to John's grandparents every week.
15. Football is played in the yard by the boys.
16. Employment is said that is the most important thing to the youth today.
17. A policeman's the way to the station is showed.
18. Almost all houses in the neighborhood have beendestroyed by the fire.
19. She was considered that was the best singer.
20. Your dirty fingers aren't wiped on the clean table cloth.