-Bruce donated many books and a lot of money to charity.kind young man!A. WhatB. What aC.

问题补充：

-Bruce donated many books and a lot of money to charity.

kind young man!

A. What

B. What a

C. What an

D. How

答案：

A. What

(答案→)B. What a

C. What an

D. How

解析：句意：---Bruce捐了很多书和钱给慈善机构。---多么善良的一个年轻人啊。感叹句式：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、可数名词复数形式+（主语+谓语）！How+形容词+a/an+可数单数+主语+谓语！根据题意，故选B。