用被动语态怎么转换过来写这句话：They ofen clean their classroom after school.

用被动语态怎么转换过来写这句话：They ofen clean their classroom after school. 被动语态怎么写 被动语态怎么写? they are worried这句话是被动语态吗,一般现在时的被动语态? They have all been put to shame by a boy这句话说是被动语态,改为主动语态怎么改, they are needed help 这句话对吗?need要用被动语态形式吗? was invited to a children's party怎样看出它是被动语态 这句话变成主动语态是怎么写 被动语态怎么用? “被动语态” “主动语态” “动态助词” “语气助词” “这句话是被动语态” 以上怎么翻译成英语? 英语的被动语态和主动语态怎么转换?被动语态的用法 People know that she is a good swimmer怎么变成被动语态这句话以及这一类的They say that...People believe that...He thought that...They suppose that...开头的句子怎么变成被动语态形式的啊? they are worried about me ,they worry about me.这两句话怎么理解啊,主要是不懂第一句话为什么要用被动语态,难道翻译成他们被担心? 一般将来时态被动语态.这几个句子怎么写 初中被动语态怎么用 英语被动语态怎么用? 动词不定式的被动语态这句话用英语怎么说 make 的被动语态He's films always make me laugh.这句话的被动语态怎么变? 帮我把这句话变被动语态：They made the clavidord in 1681