◎ 题干
Mary's ____ brother is a doctor. He is four years ____ than her.  
[     ]
A. older; elder                          
B. elder; elder  
C. elder; older                          
D. older; older
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Mary's ____ brother is a doctor. He is four years ____ than her. [ ]A. older; elderB. elder; elder C. elder; olderD. older; older…”主要考查了你对  【形容词的比较级,形容词的最高级】  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。