—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 |
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—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 |
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