It was at the music hall _______ we met each other for the first

It was at the music hall _______ we met each other for the first time.
A、when
B、where
C、which
D、that
【正确答案】：D
【题目解析】：这个句子是很典型的强调句型。强调句型的特色就是去掉 it is / was . that ,还原回去，句子成分依旧完整，你可以还原成：We met each other for the first time at the music hall.
如果去掉at，就可以选A，用where充当引导词修饰先行词the music hall 作其定语从句,并在定语从句里面充当状语成分。