________ role she played in the film! No wonder she has won an Oscar．

A.How interesting

B.How an interesting

C.What interesting

D.What an interesting

答案及解析： D

解析：

该题考查感叹句的表达方式。由于role为可数名词单数，所以可排除无冠词的A、C两项; what修饰可数名词单数的结构为“what+a/an+形容词+名词”，而how则须为“how+形容词+a/an+名词”，因此答案为D项。