问题
选择题
—I phoned you at 7:00 this morning. But there was no answer.
—Well, maybe I ____________morning exercises at that time. [ ]
A. was doing
B. did
C. is doing
D. would do
答案
答案：A
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—I phoned you at 7:00 this morning. But there was no answer.
—Well, maybe I ____________morning exercises at that time. [ ]
A. was doing
B. did
C. is doing
D. would do
答案：A