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I could not have fulfilled the task in time if it ______ for your help.A、had bee
I could not have fulfilled the task in time if it ______ for your help.A、had bee
游客
2023-10-11
16
管理
问题
I could not have fulfilled the task in time if it ______ for your help.
选项
A、had been
B、has been
C、was not
D、had not been
答案
D
解析
本句为虚拟句,从句中表示与过去事实相反的假设时,须用过去完成时。
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