◎ 题干
—David didn't take part in the volleyball match last night.
—Yes.That was________he had injured his foot in the training.

A. why  
B. because  
C. whether  
D. what

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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—David didn't take part in the volleyball match last night.—Yes.That was________he had injured his foot in the training.[ ]A. why B. becauseC. whetherD. …”主要考查了你对  【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。