感叹句怎么用?比如：----- clever the boy is!

由what引导的感叹句
　　what修饰名词或名词短语,有以下两种形式：
　　1.What+a(an)+（形容词）+单数可数名词+主语+谓语!如：
　　What an apple this is!
　　What a fine day it is!
　　2.What+(形容词）+可数名词复数或不可数名词+主语+谓语!
　　What kind women they are!
　　What nice music it is!
由How引导的感叹句
　　how用来修饰形容词、副词或动词.其结构是：How+形容词（副词）+主语+谓语!　How hard the worker are working!
　　How clever the girl is!
　　How quickly the boy is writing! 再答： 答案自己想吧，