children could's have done all this damage怎么变被动语态?
1.Children couldn't have done all this damage.
含有be动词的被动语态怎么变,have been done一定指被动吗
He couldn't have done this怎么改被动语态啊
问下被动语态问题,have been done 是现在完成时的被动语态,那we have done this homew
我想问一下(What have people done about this?)这句话的被动语态怎么改?
主动语态变被动语态 I have told the children many times not to skate o
have to 变被动语态
被动语态变主动语态怎么变
they test this new car的被动语态怎么变?
must have been done是什么被动语态
have been done 是被动语态 have sth done 也是被动语态 我有点蒙了.
have done还是be done是被动语态,