◎ 题干
Having arrived at the station, _____.
A.it was found that the train had left
B.the train had left
C.the train was found left
D.he found that the train had left
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Having arrived at the station, _____. A.it was found that the train had left B.the train had left C.the train was found left D.he found that the train had left…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  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。