____ is that I have promised to make friends with the dishonest girl.A.The only thing what I regret B.What I regret most C.All what I really regret most D.What that I regret most 请问A错在 哪里
问题描述：
____ is that I have promised to make friends with the dishonest girl.
A.The only thing what I regret B.What I regret most C.All what I really regret most D.What that I regret most
请问A错在 哪里
答
The only thing 不用 what 了。
答
thing后面的是其定语从句,要用关系代词that,而what不是关系代词,无法引导定语从句