The news shocked the whole nation a strong earthquake hit Yushu on Apr14 ．A. whatB.

问题补充：

The news shocked the whole nation a strong earthquake hit Yushu on Apr．14, ．

A. what

B. when

C. that

D. which

答案：

A. what

B. when

(答案→)C. that

D. which

解析：考查定语从句。先行词nation前有the whole修饰，故引导词用that，选C。