【题目】After making the speech, he went through it in his mind to reflect where he_________ better.
A. could do B. would do C. could have done D. would have done
在线课程【答案】C
【解析】考查情态动词与虚拟语气。句意：演讲完成之后，他在脑子里想了一遍，反省还有哪些地方他本来可以做得更好。could have done表示未曾实现的能力：即表示过去本来有能力可以做某事的，但实际上没有那样去做，通常译为“本来可以”“本来能够”等，故选C。