◎ 题干
I thought Tom was dropping his head low______ the text, _____, in fact he was sleeping.
[     ]
A. to read,  when                  
B. to be reading,  since  
C. read,  where                    
D. reading,   while
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I thought Tom was dropping his head low______ the text, _____, in fact he was sleeping. [ ]A. to read,when B. to be reading,since C. read,whereD. reading, w…”主要考查了你对  【并列连词】【现在分词】  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。