题目内容
—Cathy,did you attend the lecture given by Mr.Black last night?
—No.I ______ a report at the office.
A.was writing
B.wrote
C.had written
D.have been writing
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题目内容
—Cathy,did you attend the lecture given by Mr.Black last night?
—No.I ______ a report at the office.
A.was writing
B.wrote
C.had written
D.have been writing