{"answers": "D", "options": ["m : i drop my subway card on the platform . thank you very much .", "m : you drop your wallet on the platform . thank you very much .", "m : i drop my train ticket on the platform . thank you very much .", "m : i drop my wallet on the platform . thank you very much ."], "article": "f : excuse me , sir . i think you drop this on the platform back there . m : oh , thank you so much . it would have been terrible if i had gotten on the subway without my wallet . f : do n't mention it . oh , there 's my train . see you .", "id": "train_6177"}