{"answers": "D", "options": ["f : thank you for telling me the way to the airport , that 's exactly what i want to know .", "f : oh , thank you , driver . you are certainly familiar withe the work hours of your company .", "f : thank you ! are you sure they did n't change the timetable of the bus to the airport ?", "f : yeah , i think so . they should put up some notes for the change of timetable ."], "article": "f : what time does the bus leave for the airport ? m : i do n't know . it used to leave every half hour , but i think the timetable has been changed .", "id": "train_3718"}