单项选择题

（）their help, he could not have finished the task on time.

A. Had not it been for
B. It hadn’t been for
C. Had it not been for
D. Hadn’t been for

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Mr. Robinson decided to take back his （）.

A. criticism of Mr. Wang
B. criticism of Mr. Wang’s
C. the criticism of Mr. Wang
D. Mr. Wang’s criticism
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There is （）man downstairs waiting for you.

A. any
B. some
C. few
D. not
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