在职攻硕英语考试

【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。 查看试题解析出处>>