You have no idea ( )worried I was

问题描述:

You have no idea ( )worried I was
()里为什么用how 不用that、which?

You have no idea what I worried about.你不知道我担心的是什么.
You have no idea that I worried.你不知道我在担心.
You have no idea how worried I was.你不知道我有多担心.
比较一下这三句话就好理解了.