---he police have caught the murderer.---Yes, and he admitted ______ his boss on a rainy night seven years ago.A.to killB.to have killedC.having killedD.have been killing
网友回答
C解析在delay，admit，avoid，suggest，advise，practise，finish，mind，enjoy等动词后，只跟动名词而不跟动词不定式作宾语。A、B选项是动词不定式形式，不能用在admit后；D中选项是谓语形式，也不对；C是动名词的完成时态形式，符合句法和题意的要求。