{"answers": "D", "options": ["f : it 's not far , so i think there is no need to take a bus to work .", "f : so you ride to work , even it 's winter now .", "f : subway is good . but if you know how to ride , riding would be more convenient .", "f : sure . it 's convenient for you to go by subway ."], "article": "f : do you go to work by bus or by bike ? m : i like riding the bike in the summer , but it 's too cold to ride in the winter , so i take the subway these days .", "id": "train_5147"}