they are needed help 这句话对吗?need要用被动语态形式吗?

they are needed help 这句话对吗?need要用被动语态形式吗? my shoes are so dirty that they need polished这句话对吗?是用polishe help必须用被动语态吗 They can help us.(被动语态） 请问 感官动词无被动语态这句话对吗? they are writing a composition 被动语态 用被动语态怎么转换过来写这句话：They ofen clean their classroom after school 这句话用的是被动语态吗? 这句话是被动语态吗  请问这句话是被动语态吗? You are grown old?这句话为什么是被动语态? 英语翻译请问你很容易分心.怎么翻译?you are easily distracted.这句话是被动语态吗?如果不用被动