◎ 题干
- The book on the desk is Tom's, isn't it?      
- No, it's _____.      
[     ]
A. someone else                
B. someone else's      
C. else someone's                
D. else someone
◎ 答案
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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 book on the desk is Tom's, isn't it?- No, it's _____. [ ]A. someone else B. someone else's C. else someone'sD. else someone…”主要考查了你对  【名词所有格】【不定代词】  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。