People have heard what the President has said; they are waiting to see he will do.A. how

问题补充：

People have heard what the President has said; they are waiting to see he will do.

A. how

B. what

C. when

D. that

答案：

A. how

(答案→)B. what

C. when

D. that

解析：主要测试宾语从句。由语境可知句子中的动词see需要宾语，另外句子 he will do中也需要宾语，结合所给答案可知what可以充当上述双重作用。译文：人们已经听说了总统的发言；人们正等待着看他将会做些什么。