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WhenIdroppedin,DrSmith

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问题详情:

WhenIdroppedin,DrSmith

When I dropped in, Dr Smith _____, so we only had time for a few words.

       A. just left       B. was just leaving  C. has just left      D. had just left

【回答】

B


知识点:动词时态

题型:选择题

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