◎ 题干
By the time my mom _____ to our school, all others of my class ______ for home.
A.got, leftB.got, had left
C.had got, had leftD.had got, left
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“By the time my mom _____ to our school, all others of my class ______ for home.A.got, leftB.got, had leftC.had got, had leftD.had got, 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。