Question

they have cleaned their room后面可以加什么

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___

Answer 1

1.The room have been cleaned by them.
2.Can the work be finished today?
3.No,it hasn't.
4.Must the door be paint this afternoon?
5.Books cannot be replaced by computers.
6.The housework hasn't been finished by them.
7.Could stars be seen in the sky tonight?
8.Have his letters been received?
9.Yes,it has.No,it hasn't.
10.Yes,it can .No,it can't.