◎ 题干
—I called you at 7:30 p. m yesterday, but no one answered.
—Oh, I_________.

[     ]

A. was taking a bath
B. am shopping on line
C. have been out for a walk
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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 called you at 7:30 p. m yesterday, but no one answered. —Oh, I_________. [ ]A. was taking a bath B. am shopping on line C. have been out for a walk …”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。