◎ 题干
—I called you at six o'clock yesterday evening but there was no reply.
—Oh, I'm sorry. I _______ dinner at my friend's.
[     ]
A. was having
B. is having
C. had
D. have
◎ 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 called you at six o'clock yesterday evening but there was no reply. —Oh, I'm sorry. I _______ dinner at my friend's. [ ]A. was having B. is having C.…”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。