Question

what we have said has made her so unhappy.与what have we said to make her so unhappy?

Answer 1

What have we said to make her so unhappy? 这是一个特殊疑问句,如果把句子还原成We have said what _______her so unhappy,显然to make 作结果状语。
What we have said has made her so unhappy.成了主语从句

Answer 2

一个是陈述句 一个是疑问句 但有一点小错误
第一句的意思是：我们所说的令她很不开心。What we said have made her so unhappy
第二句的意思是：我们说了什么使她很不开心？What did we say that have made her so unhappy?

Answer 3

用makes或made。不能填to make， said to do sth 转成叙述句谓语后接不定式。 陈述句应是we have said what (make)her so happy.意思

Answer 4

两句均错，应该为：
What we said has made her so unhappy.陈述句，我们所说的让她很不高兴。
What did we say that made her so unhappy?疑问句，我们说什么了让她这么不高兴？

Answer 5

what have we said to make her so unhappy?这里语法错误
应该是What we have said to make her so unhappy.