◎ 题干
Yesterday was the twins’ birthday, ________  presented a gift.
A . each of them    B each of whom  C  both of them  D  both of whom
◎ 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“ Yesterday was the twins’ birthday, ________ presented a gift. A . each of them B each of whomC both of themD both of whom…”主要考查了你对  【人称代词】【相互代词】【疑问代词】【关系代词】  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。