We the difficulty together but why didn’t you tell me?A. need have facedB. can have faced

问题补充：

We the difficulty together, but why didn’t you tell me?

A. need have faced

B. can have faced

C. could have faced

D. must have faced

答案：

A. need have faced

B. can have faced

(答案→)C. could have faced

D. must have faced

解析：考查情态动词和虚拟语气。A有必要做某事，实际上却未做；B可能做了某事；C本可以做某事，实际上却未做；D一定做了某事；句意：我们本可以一起面对这些困难，但是你什么不告诉我？本句是一个对过去情况的虚拟。故C正确。