clever girl she is! She got a good mark in the math exam again.A. WhatB. What aC. HowD.

问题补充：

clever girl she is! She got a good mark in the math exam again.

A. What

B. What a

C. How

D. How a

答案：

A. What

(答案→)B. What a

C. How

D. How a

解析：句意：她真是个聪明的女孩！她在数学考试中又得了好成绩。感叹句的构成：How+形容词+主语+谓语，What+a/an+形容词+可数名词单数+主语+谓语，What+形容词+不可数名词或可数名词复数+主语+谓语，girl是一个不可数名词，所以选B。