◎ 题干
He was sitting there ________ his cigarette. Without any words, he seemed to be ________ deep
thought.  
[     ]
A. at; in        
B. over; in        
C. with; at      
D. with; over
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“He was sitting there ________ his cigarette. Without any words, he seemed to be ________ deepthought. [ ]A. at; inB. over; inC. with; at D. with; over…”主要考查了你对  【介词和介词短语】  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。