-----You were brave enough to raise objections at the meeting.　　

-----Well, now I regret ____that.

　 A. to do 　 B. to be doing C. to have done 　 D. having done

---- You were brave enough to raise objections at the meeting .

　　----Well , now I regret ____ that .

　　A . to do        B . to be doing        C . to have done       D . having done

－You were brave enough to raise objections at the meeting.

－Well, now I regret ________ that.

[　　]

—You were brave enough to raise objections at the meeting.

—Well , now I regret ________ that .

[　　]

--You were brave enough to have raised objections at the meeting.

--Well, now I regret ________ that.

[　　]

A．to do

B．to be doing

C．to having done

D．having done