Question

【题目】I really don’t know ________ he stayed.

A.where was thatB.it was where thatC.where it was thatD.was it where that

Answer 1

【答案】C

【解析】

该句意为我真的不知道他住在哪里。本题比较复杂，包括两个从句，一，where it was做know的宾语，是宾语从句，二，that he stayed是was的主语，是主语从句，本句中的it还是形式主语。故答案为C。