23.The fire destroyed ____ was in the building.

题目

23.The fire destroyed ____ was in the building.
A.all B.what C.that D.which
这些句子的结构,
为什么要选择这样的答案和这些句子的意思

答案

大火把大楼里的一切都烧毁了
这是一个定语从句,在这里 what=all that 现在明白了吧,其实就是下面这个句子
The fire destroyed all that was in the building
that was in the building为定语,修饰all