一道英语题，急用，只要答案好，我会重谢的！

把这些主动语态句改为被动语态。
1.We shall discuss the problem at tomorrow' meeting.
2.Has anybody fed the birds?
3.People will never forget the accident.
4.They are repairing the car in the garage.
5.Someone must have turned on the light without your notice.
6.They have found ways to make waste water clean.
7.Someone must take care of the children when we go gut.
8.They won't hold the meeting until next Friday.
9.You may write this letter in pencil.
10.They gave him a medal for his wonderful work.

1.We shall discuss the problem at tomorrow' meeting.

The problem shall be discussed at tommorrow meeting by us.

2.Has anybody fed the birds?

Have the birds been fed by anybody?

3.People will never forget the accident.

The accident will be never forgetten by people.

4.They are repairing the car in the garage.

The car is being tepairing in the garage by them.

5.Someone must have turned on the light without your notice.

The light must has been turned on with your notice by someone.

6.They have found ways to make waste water clean.

The ways to make waste water clean has been found by them.

7.Someone must take care of the children when we go gut.

The children must be taken care of when we go out.

8.They won't hold the meeting until next Friday.

The meeting will not be held until next Firday by them.