we visited the school that lies in ___was a big factory more than twenty years agoA:waht B:which C:that D:where我觉得好像用where
问题描述：
we visited the school that lies in ___was a big factory more than twenty years ago
A:waht B:which C:that D:where
我觉得好像用where
答
A what
这是what 一个典型用法，in后面的从句（___was a big factory） 缺主语。而非定语从句，不能死套which that...
此类典型例句，Our hometown is no longer what it was ten years ago.我们的家乡再也不像她十年前那样了
答
B