◎ 题干
—I didn't see you at the party yesterday.
—Oh, I ______ a meeting at that time.  
[     ]
A. had
B. have
C. was having
D. am having
◎ 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“—I didn't see you at the party yesterday.—Oh, I ______ a meeting at that time.[ ]A. hadB. haveC. was havingD. am having…”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。