题目内容

My frien, who ________ on the International Olympic Committee all his life, is retiring next month.

[  ]

A.served

B.is serving

C.had served

D.has served

答案:D
解析:

首先根据后面“is retiring next month”说明现在还在工作,另外根据all his life可知工作是持续的。持续到现在的动作或状态,应该用现在完成时。


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