◎ 题干
— What do you think of my new digital camera?
— I'm sorry, but what did you say? I _____ about something else.
[     ]
A. think
B. thought
C. am thinking
D. was thinking
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— What do you think of my new digital camera? — I'm sorry, but what did you say? I _____ about something else. [ ]A. think B. thought C. am thinking D. w…”主要考查了你对  【过去进行时】  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。