The fire destroyed all was in the building.A. whatB. thatC. whichD. who

问题补充：

The fire destroyed all was in the building.

A. what

B. that

C. which

D. who

答案：

A. what

(答案→)B. that

C. which

D. who

解析： 考查定语从句。先行词为all，且从句中缺少主语，所以使用关系代词that，选B。