◎ 题干
Helen was much kinder to her youngest son than to the others, _____, of course, made the others envy him.
[     ]
A. who
B. that
C. what
D. which
◎ 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“Helen was much kinder to her youngest son than to the others, _____, of course, made the others envy him. [ ]A. whoB. that C. whatD. which …”主要考查了你对  【关系代词】【非限制性定语从句】  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。