- Look! Somebody_______ the sofa.
-Well, it wasn't me. I didn't do it.
A.is cleaningB.was cleaningC.has cleanedD.cleans
C

試題分析:句意:看!有人打掃了沙發(fā)。恩,不是我,我沒有打掃。根據(jù)句意,表示已經(jīng)打掃了,用現(xiàn)在完成時表示對現(xiàn)在造成的影響,故選C
點評:現(xiàn)在完成時表示動作已經(jīng)完成,并對現(xiàn)在造成了影響。初中階段注意兩個詞所連的時間狀語,即for后面加一段時間;since后面加點時間,有這兩個短語在句子中時,句子都需要用現(xiàn)在完成時。
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