◎ 题干
-I called you yesterday evening, but there was no answer.
-Oh, I am sorry. I _________ dinner at my friend's home.
[     ]
A. have had
B. had
C. was having
D. had had
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“-I called you yesterday evening, but there was no answer.-Oh, I am sorry. I _________ dinner at my friend's home.[ ]A. have hadB. hadC. was havingD. had …”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。