1. He broke my watch. He has broke my watch. My watch was broken.
2. The teacher explained the rule to the students. The rule was explained to the students.
3. He often asks me to help them. Help was asking by him. They were helped.
4. They usually do written exercises in class. Exercises were done in the class.
5. She will make a new discovery soon. A new discovery will be made soon. The discovery will be made.
6.Steve will make a report at the conference. A report will be made at the conference.
7. they play tennis all year round. The tennis is played by them every year
8. His friends never forgave his betrayal. Betrayal will never be forgiven. Betrayal was not forgiven by them.
9. Several jobs were offered. I was offered several jobs,
10. Much was promised by them, but not given.
11. Parcels were sent him by his parents. He was sent a parcel with fruit.
12. Leave was given. There was no urgent work. He was given a leave.
13. Three ships were offered by Spanish government.
14. Their children were sent to camp.
15. He was charged on the important mission.
16.The matter will be easily settled.
17.