Thank you for all your hard work last week. I don’t think we it without you. A. can mana

问题补充：

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

答案：

A. can manage

(答案→)B. could have managed

C. could manage

D. can have managed

解析：此题考查情态动词表示虚拟意义的用法。I don’t think…是否定前移。意为：我认为没有你我们本不能做成这件事的。此题关键是要根据句意知道是虚拟语气，其基本形式是情态动词（过去式）+have done,所以其他选项皆可排除。