问题
选择题
—I called you last night, but you didn’t answer it.
—I’m terribly sorry. I ______ a meeting at that time.[ ]
A. had
B. was having
C. am having
答案
答案：B
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—I called you last night, but you didn’t answer it.
—I’m terribly sorry. I ______ a meeting at that time.[ ]
A. had
B. was having
C. am having
答案：B