Viết các câu sau thành câu bị động

1.     We have seen the new bridge.

2.     Peter hasn’t had breakfast this morning.

3.     Have Ann and Don washed the car?

4.     I have forgotten that man’s name. 

5.     Have they lost their keys?

6.     He hasn’t brought a lot of English papers.

7.     I haven’t painted my office. 

8.     Liz hasn’t turned the heating on.

9.     Have they paid money yet?

10.  Someone has stolen my bicycle.

11. You haven’t finished your project yet.

12. Has your brother taken many photographs?