1.The light must have been turned by someone without your notice
2. Ways have been found to make waste wate clean by them
3. When we go out, the children must be taken care of by someone.
4. The meeting will not be held by them until next Friday
5. A medal was given him for his wonderful work by them
6. The patient will be asked some questions by the doctor before the patient is given medicine
7. The young man was made head of the volleyball team by them
8. You will be told how to prepare for the examination by someone
9. I was criticized for something wrong that l had done by them
10. the stranger has been taken to another hospital by someone
11. I was surprised that Li was not given holiday after his hard work by them
12. she should not be criticized for this matter
13. You will be laughed if you wear that dress
14. you should have been told how much money you needed by them
15. He has been told that he he didn't satisfy his examiner by me
16. the work must be finished by 6 o'clock this afternoon
后面的by带的内容可以去掉