Five minutes earlier and wethe last bus.A. had caughtB. should have caughtC. could have c

问题补充：

Five minutes earlier, and wethe last bus.

A. had caught

B. should have caught

C. could have caught

D. caught

答案：

A. had caught

B. should have caught

(答案→)C. could have caught

D. caught

解析：句意：再早五分钟,我们就赶上最后一趟地铁了。根据句意可知事实上没能赶上。Five minutes earlier,是隐含的虚拟条件句，相当于：If we had arrived five minutes，主句用could have done表示“过去本可能做却没有”，should have done “过去本应该做却没做”，选C。