问题
选择题
We ________the difficulty together, but why didn’t you tell me?
A．should face
B．might face
C．could have faced
D．must have faced
答案
答案：C
题目分析：考查情态动词。本题考查对过去事情推测，故用情态动词 + have done，could have done本可以做，must have done过去一定做。句意：我们本可以一起克服困难的，但你为什么不告诉我呢？故C正确。