thank you for all your hard work last week.I don't think we________ it without you.

问题描述:

thank you for all your hard work last week.I don't think we________ it without you.
A can manage B could have managed
C could manage D can have managed

B.could have managed
这是一个虚拟表达,因为必须用could不能用can表示假如在没有你的帮助的情况下,我们可能不能处理好,对付得了它.have managed表示完成时.因为现在已经完成了.