— The floor is dirty.— Yes. It _______ for two days.A．hasn’t sweptB．didn’t sweep

题干

— The floor is dirty.
— Yes. It _______ for two days.

A．hasn’t swept	B．didn’t sweep
C．hasn’t cleaned	D．hasn’t been cleaned

上一题下一题 0.64难度单项选择更新时间:2017-01-17 01:57:08

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