1. I aked my friend to help me.
2. I was asked to help him.
3. The teacher gave the students a hard task.
4. The students were given a hard task.
5. We often discuss the important questions at home.
6. The important questions are discussed at home.
7. She will finish this job tomorrow.
8. This job will be finished tomorrow.
9. She told us the truth.
10. The truth was told to us.
11. He sometimes forget to buy the bread.
12. Why is it often forgot about?
13. He will return the book in time.
14. The book wil be returned in time.
15. This buidings were built two years ago.
16. Mum forbades to play in the street them.
17. They are forbade to play in the street.
18. When are the letters will be sent?
19. They will meet us at the station.
20. Where will we be met?