◎ 题干
Linda didn’t go to school yesterday because she had to        her sick mother at home.
A.look atB.look forC.look afterD.look up
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Linda didn’t go to school yesterday because she had toher sick mother at home.A.look atB.look forC.look afterD.look up…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。