◎ 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
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“MrsGreen is _____________ mother. Theyare _____________.[ ]A. LucyandLily's, twinsB. Lucy'sandLily's, twins'C. LucyandLily's, twinD. Lucy'sandLily's…”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。