—Look! Someone the floor.
—Well, it wasn't me. I went shopping just now.
A. had swept
B. has swept
C. was sweeping
D. is sweeping
网友回答
A. had swept
(答案→)B. has swept
C. was sweeping
D. is sweeping
解析：B 考察动词时态。—看已经有人扫过地了。—嗯，不是我。我刚刚出去买东西。根据it wasn’t me可以推断扫地这一动作已经完成，并结合语境分析，该动作的结果对现在的情况有影响，故用现在完成时。