They hurried to the train station it was too late. They had to wait another ten minutes.A

问题补充：

They hurried to the train station, it was too late. They had to wait another ten minutes.

A. but

B. so

C. and

D. or

答案：

(答案→)A. but

B. so

C. and

D. or

解析：考查连词, but但是,可是;so 因此;and 和,并且;or或者,否则.句意:他们匆忙赶到火车站,但是太晚了.他们不得不在等十分钟.结合语境可知选A.