-Look! Someone sofa.
-Well,it wasn`t me.I didn`t do it
A. is cleaning
B. was cleaning
C. has cleaned
D. had cleaned
网友回答
A. is cleaning
B. was cleaning
(答案→)C. has cleaned
D. had cleaned
解析：考查时态。句意：—看有人已经把沙发打扫干净了。—不是我，我没有做这件事情。根据句意说明打扫沙发是已经发生的事情，故使用现在完成时。故C正确。