◎ 题干
Mrs Brown isn’t here. She has to _______ her son at home.   
[     ]
A. look for    
B. look up      
C. look after      
D. look at
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Mrs Brown isn’t here. She has to _______ her son at home. [ ]A. look for B. look up C. look afterD. look at …”主要考查了你对  【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。