Question

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

Answer 1

答案D
考察情态动词用法。根据why didn’t you tell me?中的过去时可知本书是对过去情况进行虚拟，故D正确。Must have done一定做了某事；could have done本可以做，实际上却未做；结合句意可知D正确。我们本可以一起面对困难，但是为什么你不告诉我？