◎ 题干
_______ the school, he saw his parents ________ for him at the school gate.
A.At reaching; waitedB.On arriving; waiting
C.At arriving; waitedD.On reaching; waiting
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ _______ the school, he saw his parents ________ for him at the school gate.A.At reaching; waitedB.On arriving; waitingC.At arriving; waitedD.On reaching; w…”主要考查了你对  【介词和介词短语】  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。