题目内容
—Excuse me, when ______you ______ the man in blue?
—Last year. And I _____ him for one year.
A. have ; known; have known B. did; know; knew
C. did; know; have known D. have; known; knew
C
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用方框中所给单词的适当形式填空,每个词限用一次。
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