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题目内容
（当代英语语法概论）
( ) 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
A.If not had been it
B.Hadn’t been it
C.Hadn’t it been
D.Had it not been
参考答案