—How dare(敢) you talk to your teacher like that? —Well now I regret that.A. to doB. to b

问题补充：

—How dare(敢) you talk to your teacher like that?

—Well, now I regret that.

A. to do

B. to be doing

C. to have done

D. doing

答案：

A. to do

B. to be doing

C. to have done

(答案→)D. doing

解析：考查短语：regret doing后悔做了某事，句意：你怎么敢那样跟你的老师讲话？现在我后悔那样做了。所以选D。