问题
选择题
—Do you know that a 13-year-old English boy has done a nuclear experiment successfully?
—_______ unusual work he has done!
A．What an
B．What a
C．What
D．How
答案
答案：C
题目分析：感叹句一般有两种结构：what +(a/an)+形容词+名词+主语+谓语！名词是复数或不可数名词，不加a/an.how+形容词+主语+谓语！work,不可数名词，故选C。