[题目] the program, they have to stay there for another two weeks.A. Not completing B. Not completedC. Not having completed D. Having not completed 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】________ the program, they have to stay there for another two weeks.

A. Not completing B. Not completed

C. Not having completed D. Having not completed

【答案】C

【解析】

试题考查现在分词的完成式做状语，因为他们是先没有完成任务，然后不得不在这儿再待两个星期。表示从句的动作先于主句的动作，要用现在分词的完成式，否定式是：not having done。选C。

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