【单选题】 ______ for your laziness, you could have finished the assignment by now.
A.Had it not been
B.Weren't it
C.It were not
D.Had not it been
网考网参考答案:A
网考网解析:
[注释] 题中逗号前为省略了if并部分倒装的虚拟条件句,表示与过去事实相反的假设。此处主句用could+完成时,条件句应为过去完成时态。
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