—What were you doing when we were playing basketball yesterday afternoon?— I _______the classroom._刷题宝

题干

—What were you doing when we were playing basketball yesterday afternoon?

— I _______the classroom.

A：clean

B：have cleaned

C：will clean

D：was cleaning

上一题下一题 0.0难度选择题更新时间:2013-12-16 10:58:53

答案(点此获取答案解析）

D

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