◎ 题干
Mrs. Green is          mother. They are         .               
[     ]
A. Lucy and Lily's; twins    
B. Lucy's and Lily's; twins'
C. Lucy and Lily's; twin    
D. Lucy's and Lily's; twins
◎ 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. Green ismother. They are.[ ]A. Lucy and Lily's; twins B. Lucy's and Lily's; twins'C. Lucy and Lily's; twin D. Lucy's and Lily's; twins…”主要考查了你对  【复数名词】【名词所有格】  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。