◎ 题干

I called ________ his house this morning, but he wasn’t in. So I left a message telling him I would call______ him the next day.
A.on; onB.at; atC.at; onD.on; at
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I called ________ his house this morning, but he wasn’t in. So I left a message telling him I would call______ him the next day.A.on; onB.at; atC.at; onD.o…”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。