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--Look! Someone ________ the floor.
--Well, it wasn’t me. I went shopping just now.
A.had sweptB.has sweptC.was sweepingD.is sweeping
B

试题分析:句意:--看,有人已经擦过地板了。--哦,那不是我,我刚才去买东西去了。这里根据it wasn’t me.可知地板已经擦完,强调过去的动作对现在造成的影响。故选B。
点评:本题难度适中。动词时态是高中阶段的重难点之一,需要考生能够理解句意进而对动词的时态做出正确的判断。这里考生容易误选A。
即学即练:Planing so far ahead      no sense—so many things will have changed by next year.
A.made        B.is making    C.makes        D.has made
解析:C。句意:“计划这么超前毫无意义—到明年许多事情会发生变化的。”前句表示现在的情况make no sense,后句表示到将来会产生的后果will have changed。一般现在时表示主语的特征或状态。is making和has made表示具体的动作过程,故不选。因此选C。
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