Was it in the hotel where he stayed last week ( ) he lost his cellphone

问题描述:

Was it in the hotel where he stayed last week ( ) he lost his cellphone
A that B when C where D which
要选哪个?为什么?

A 强调句型
in the hotel是被强调部分 that he lost his cellphone 是剩余部分
where he stayed last week 是修饰hotel的定语从句