bad weather it is. It has been raining for two weeks.A. What aB. How aC. WhatD. How

问题补充：

bad weather it is. It has been raining for two weeks.

A. What a

B. How a

C. What

D. How

答案：

A. What a

B. How a

(答案→)C. What

D. How

解析：weather是不可数名词，故用what来引导其感叹句。