◎ 题干
Mr. White ____ his racing bicycle by himself yesterday, but I am not sure whether it is ready.

A. repaired
B. had repaired
C. was repairing
D. would repair
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Mr. White ____ his racing bicycle by himself yesterday, but I am not sure whether it is ready. [ ]A. repaired B. had repaired C. was repairing D. would rep…”主要考查了你对  【过去进行时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。