I regret most is that I have promised to make friends with the dishonest girl.A. HowB. W

问题补充：

I regret most is that I have promised to make friends with the dishonest girl.

A. How

B. What

C. Where

D. That

答案：

A. How

(答案→)B. What

C. Where

D. That

解析：B 考察主语从句。主语从句中缺少宾语，故使用what。句意：我最后悔的是我已经许诺和那个不诚实的女孩交朋友。