We really do not understand________he refused to speak to us.

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问题 We really do not understand________he refused to speak to us.

选项 A、before
B、that
C、why
D、after

答案C

解析 分析句子结构可知,空处引导的是一个宾语从句。根据句意可知,从句中缺少原因状语。所以应用why引导。before,after可引导时间状语从句,不能引导名词性从句;that在宾语从句中不充当任何语法成分,只起连接作用且无词义,这三项均不符合题意。故选C。
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本试题收录于: 英语题库普高专升本分类
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