◎ 题干
— Someone is knocking at the door. Who can _____ be?   
— I will go and answer it.   

A. she    
B. they  
C. he    
D. it
◎ 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“— Someone is knocking at the door. Who can _____ be? — I will go and answer it. [ ]A. sheB. they C. heD. it…”主要考查了你对  【人称代词】  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。