—I called you last night, but you didn’t
问题:
—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
—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