Question

I was surprised by her words,which made me recognize__silly

I was surprised by her words,which made me recognize__silly mistakes I had made
为什么用what不用how，这是考感叹句吗？请详细说一下，多谢
这是考感叹句还是名词性从句？

Answer 1

是考感叹句，从空格往后是个感叹句。
_What_silly mistakes I had made！你把主谓部分 I had made去掉看看，感叹部分还有名词复数mistakes，对名词感叹要用what，因为是复数，所以不存在a/an问题

Answer 2

what在此处为形容词“多么的、何等的”，用来做名词mistakes的定语；而副词how“多么地”不能去修饰一个名词，作这个名词的定语，这是说不通的；这不是考感叹句，而是考what作定语的。
希望能帮到你，(⊙_⊙)？可以再问我啊~~

Answer 3

是考感叹句，感叹句呢又作宾语从句 what＋形容词/副词＋名词＋主谓 how＋形/副＋主谓 what a funny today is！＝how funny today is！

Answer 4

what 形容内容啊

how 是程度词