1. Her song had been heard several times.
2. Your car was stolen by him.
3. The work is being watched by the teacher.
4. That silly thing isn't done again.
5. The children't aren't worked hard
6.he was worked all day.
7. The woman was seen putting the jewelry in her bag by the detective.
8. The hostages were made lie down by the terrorists.
9. Drivers is advised to use an alternative route by the police.
10. I was helped do all thesedifficult exercises by her.
