问题补充:
Mr. Li arrived at the Wuguang train station twenty minutes ago, but the train to Guangzhou yet.
A. hadn’t come
B. won’t come
C. hasn’t come
D. didn’t come
答案:
A. hadn’t come
B. won’t come
(答案→)C. hasn’t come
D. didn’t come
解析:句意:20分钟前李先生到达了武广火车站,但是去广州的火车还没有来。根据yet可知它常与现在完成时连用,20分钟前来到车站,到现在车还没有来,强调结果,故选C。