正确答案是:how
区别how和what的用法,我列举以下例子帮你分析:
how:它后面接形容词,再接主语和谓语,例:How nice the girl is!或 How exciting the movie is!
what:它后面接不定冠词(a/an)+形容词+可数名词,或直接接形容词+可数名词复数/不可数名词,例:What a nice girl she is!和 What an exciting movie it is!
或者 What nice girls they are!或 What sweet sugar it is!
希望可以帮到你理解...