问题描述: Who helps them do some housework?改为被动语态晕 2L 3L 谁对啊...... 1个回答 分类:英语 2014-10-11 问题解答: 我来补答 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 展开全文阅读