解放军文职考试：动名词经典例题

Tony was very unhappy for    to the party.
[     ]
A. have not been invited            
B. not having invited
C. having not invited              
D. not having been invited
答案 : D
— 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
答案 : B