1. A dancing class was started by them last week.
2. The accident was seen by Mr. Smith.
3. My briefcase has been taken by somebody.
4. Our written work was returned to us by the teacher.
5. The report has been finished by her by noon.
6. The little boy was bitten by the mad dog.
7. Five suspects have been arrested by the police.
8. He was ordered by the doctor to take a long rest.
9. A dancing class was started by them last week.
10. The accident was seen by Mr. Smith.
11. My briefcase has been taken by somebody.
12. Our written work was returned to us by the teacher.
13. The report has been finished by her by noon.
14. The little boy was bitten by the mad dog.
15. Five suspects have been arrested by the police.
16. He was ordered by the doctor to take a long rest.
17. The streets are being swept.