问题
选择题
We _________ the difficulty together, but why didn’t you tell me?
A．should face
B．might face
C．must have faced
D．could have faced
答案
答案：D
考查虚拟语气。But后面的句子使用过去时，说明前面应该是与过去事实相反，用情态动词+have done表示与过去事实相反。
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