问题 选择题

_____ he has done it is surprising. 

_____ he has done is surprising. 

A.What

B.That

C.Whether

D.If

答案

答案:B

A.第一句意义完整,所以用That引导主语从句.第二句do需带宾语,所以用What引导主语从句.

单项选择题
填空题