exciting news it is!A. WhatB. What anC. HowD. How an

问题补充：

exciting news it is!

A. What

B. What an

C. How

D. How an

答案：

(答案→)A. What

B. What an

C. How

D. How an

解析：考查感叹句。修饰不可数名词news，用What 引导，不加冠词。选A。