Mary asked her mother______ A.what to do it B.how to do C.where t_英语解答

Mary asked her mother______ A.what to do it B.how to do C.where to live D.where to live in
我知道要在CD中选,为什么答案说选C ,不是说介词要保留的吗?

人气：125 ℃　时间：2019-12-11 23:58:05

解答

首先是类似一个宾语从句
然后where在to do结构中不做宾语成分,而是作状语.
故不加介词