We really appreciate all the help you have given.I don't think we__it without you.A.can manage
问题描述：
We really appreciate all the help you have given.I don't think we__it without you.A.can manage
B.could have manage C.could manage D.can have managed
搞错了。
我一开始选的是C。
答
此处为虚拟语气,本意为如果没有你的帮助,我们没法完成这件事,表明现在正在你的帮助下做这件事情,与将来事实相反,应用could +动词原型对不起，搞错了。 答案选的是B，一开始我选的是C。