( ) for your laziness , you could have finished the work by now . A.If not had been it B.Hadn’t been it C.Hadn’t it been D.Had it not been

( ) for your laziness , you could have finished the work by now .

A.If not had been it
B.Hadn’t been it
C.Hadn’t it been
D.Had it not been

出自：当代英语语法概论

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