英语帮忙谁能帮我一下,因为已经写完了,想对一下答案1.They have cleaned the room(改为被动句)

英语帮忙
谁能帮我一下,因为已经写完了,想对一下答案
1.They have cleaned the room(改为被动句)
2.The work can finished today(改为一般疑问句)
3.Has the bridge been built yet?（做否定回答)
4.Must we paint the door this afternoon?（改为被动句）
5.Books can be replaced by computers（改为否定句)
6.The housework hasbeen finished by them（改为否定句)
7.Stars could be seen in the sky tonight(改为一般疑问句)
8.His letters have been received(改为一般疑问句)
9.Has the been washed（作肯定和否定回答)
9.__,it__/__,it___
10.Can the plant be moved into the house?（作肯定和否定回答)
10.__,it__/___,it___