— When shall we meet your cousin at the station?— His plane took off two hours ago and it

问题补充：

— When shall we meet your cousin at the station?

— His plane took off two hours ago, and it reach at 5 pm.

A. should

B. could

C. must

D. can

答案：

(答案→)A. should

B. could

C. must

D. can

解析：考查情态动词辨析。Should应该；could可能；must必须，一定；can能够；句意：—我什么时候到车站去车站接你的侄儿？—他的飞机2个小时前起飞，5点应该到了。Should应该，是按照道理应该，是一个留有余地的推测。故A正确。