I regret ____ that wonderful exhibition last week.

A. not to see        
B. having not seen    
C. to not see      
D. not having seen
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科目：高中英語 來源：同步題 題型：單選題

I regret ____ that wonderful exhibition last week.
[     ]
A. not to see        
B. having not seen    
C. to not see      
D. not having seen

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