问题 选择题

—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

答案

答案:B

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。

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