worries me is we’re going to pay for all this. A. It, that B. That, how C. What,

_____ worries me is _____ we’re going to pay for all this.

A. It, that         B. That, how  C. What, how    D. As, that

试题答案

C

解析:

what worries me 为主语从句，且 what 在主语从句中用作主语。