what 和 how 引导的感叹句的用法分别是什么?

What + n.(adj.+ n.) + 陈述句(主语+谓语) !How + adj./adv.+ 陈述句(主语+谓语) !eg：What fine weather it is!= It is fine weather.= How fine the weather is!What a clever boy he is!= He is a clever boy.=Ho...