{"answers": "B", "options": ["f : the bell is ringing . shall we begin our class right now ?", "f : the exit door is over there and our office time is 8:00-12:00 everyday .", "f : excuse me , do you know where is the office of professor wang ?", "f : thank you for your hospitality . i shall leave now ."], "article": "f : good morning . can i help you ? m : yes , please . i would like to know about the courses in your school . f : is that a summer course that you are interested in ? m : yes . f : well , we have short full time courses during the summer . m : hmm hmm ... i would like to know how long one course lasts . f : yes , each course last for 4 weeks . m : how many hours per week , please ? f : it 's about 23 hours a week , usually 4 and half days each week . m : you must have a lot of students in your class , have n't you ? f : we have a lot of students in the school , but in one class , only between 12 and 14 students . m : could you please give me the dates of the first and second course ? f : yes , certainly . the first course begins on july third and last until july , twenty seventh . and the second course is from august first until august twenty fifth . m : ok. thank you very much . you are welcome .", "id": "train_1602"}