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

試題分析：句意：--看，有人已經(jīng)擦過地板了。--哦，那不是我，我剛才去買東西去了。這里根據(jù)it wasn’t me.可知地板已經(jīng)擦完，強調(diào)過去的動作對現(xiàn)在造成的影響。故選B。
點評：本題難度適中。動詞時態(tài)是高中階段的重難點之一，需要考生能夠理解句意進而對動詞的時態(tài)做出正確的判斷。這里考生容易誤選A。
即學(xué)即練：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：“計劃這么超前毫無意義—到明年許多事情會發(fā)生變化的�！鼻熬浔硎粳F(xiàn)在的情況make no sense，后句表示到將來會產(chǎn)生的后果will have changed。一般現(xiàn)在時表示主語的特征或狀態(tài)。is making和has made表示具體的動作過程，故不選。因此選C。
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