◎ 题干
By the time they arrived at the station, the train         .
A.will leave B.would leave
C.has left D.had left
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“ By the time they arrived at the station, the train .A.will leaveB.would leaveC.has leftD.had left…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。