◎ 题干
-Look! Somebody       the sofa.    
-Well, it wasn’t me. I didn’t do it.
[     ]
A.is cleaning
B.was cleaning
C.has cleaned
D.had cleaned
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“-Look! Somebody the sofa.-Well, it wasn’t me. I didn’t do it.[ ]A.is cleaningB.was cleaningC.has cleanedD.had cleaned…”主要考查了你对  【现在完成时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。