thank you for all your hard work last week,i don not think we __it without youA can manage B could have managed C could manage D could have managed 为什么选B,could have done不是可以做的却没做的,代入句子不就不通了了吗?
问题描述：
thank you for all your hard work last week,i don not think we __it without you
A can manage B could have managed C could manage D could have managed 为什么选B,could have done不是可以做的却没做的,代入句子不就不通了了吗?
答
虚拟语气与过去相反的虚拟，固定用法
答
后半句是虚拟语气,是对过去的虚拟,所以应该用“could/should/would+have+过去分词”