中文谷IamsorryIhavekeptyou
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问题详情：
I am sorry I have kept you _____ for such a long time.
A. wait B. to wait C. waiting D. waited
【回答】
C
知识点：动词和动词短语
题型：选择题
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问题详情：
I am sorry I have kept you _____ for such a long time.
A. wait B. to wait C. waiting D. waited
【回答】
C
知识点：动词和动词短语
题型：选择题
