Question

【题目】They observed that two of the teams seemed __________ significant progress.

A. making B. to make

C. to have made D. having made

Answer 1

【答案】C

【解析】考查非谓语动词。seem to do sth.“好像做某事”。句意：他们注意到这些团队中的这两个队好像取得了重大的进步。根据句意可知，此处描述的动作已完成，应使用完成时。故选C。