I don't quite know the reason _______ made me think over and over
问题描述:
I don't quite know the reason _______ made me think over and over
答
which/that
这是一个定语从句,the reason 是先行词,在定语从句中做 主语.
这个题 容易 错填 why ,如果填了 why 定语从句没有主语,句子就不成立了.