◎ 题干
Tom doesn't come today. The reason is _____ he's ill at home.
[     ]
A. because    
B. why        
C. which    
D. that
◎ 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“Tom doesn't come today. The reason is _____ he's ill at home.[ ]A. because B. whyC. which D. that…”主要考查了你对  【从属连词】【表语从句】  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。