题目内容：

how引导的感叹句
把所有架构说出来~
例句就算了
how后面能不能加a?
How a .行不行?

优质解答

what 引导名词,包括复数和不可数,可数
what a beautiful day!
what beautiful flowers they are!
what clean water it is!
而how 引导副词形容词.
how beautiful the day is !
how beautiful the flowers are!
how clean the water is!