Who helps them do some housework?改为被动语态晕 2L 3L 谁对啊......

问题描述:

Who helps them do some housework?改为被动语态
晕 2L 3L 谁对啊......

Is the housework often done by Tom at home? Does the housework often been done by Tom at home Is the housework often done by Tom

By whom are they helped to do some housework ?

who are they helped to do some housework by?
上面答得我认为不对,首先句意没有by不通,其次改为被动不定式不能省略要加to
希望对你有帮助

Who are they helped to do some housework by? 或 By whom are they helped to do some housework ?都可以。