-You are brave enough to raise objections at the meeting. -Well, now I regret that. A. to do B. to be doing C. have done D. having done 【查看更多】

 

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__You are brave enough to raise objections at the meeting.
__Well, now I regret______ that.
[     ]
A. not to do  
B. having done    
C. to have done  
D. not doing

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