问题补充:
He did not regret saying what he did but felt that heit differently.
A. could express
B. would express
C. could have expressed
D. must have expressed
答案:
A. could express
B. would express
(答案→)C. could have expressed
D. must have expressed
解析:考查情态动词。情态动词加动词原形表示对现在的推测。情态动词加完成时表示对过去的推测,有的情态动词像should have done, could have done, needn’t have done等有分别表示过去应该做某事却没有做;过去可以做某事却没有去做;过去不需要做某事却做了。(情态动词是否定形式的话,就是意思相反,shouldn’t have done表示过去不应该做某事却做了)
B可以表示过去将来时A选项的could 在这里表示能力但句子要表达的是“他觉得自己可以表达得不同的,但事实上没有”,所以选C,