◎ 题干
Tom is reading a book _______ his brother is watching TV.

[     ]

A. while
B. though
C. however
D. but
◎ 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“Tom is reading a book _______ his brother is watching TV. [ ]A. while B. though C. however D. but …”主要考查了你对  【并列连词】  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。