主动语态和被动语态互换.

问题描述:

主动语态和被动语态互换.
主动语态和被动语态互换.Is the floor swept every day
Does the girl often draw picture
They don't often sing this song ..

主动语态和被动语态互换. Is the floor swept every day ?
They sweep the floor everyday.
Does the girl often draw picture ?
The picture is often drawn by the girl.
They don't often sing this song .
This song is not often sung by them.