{"answers": "D", "options": ["m : yes , we should take the subway to work like you suggested .", "m : i think you are right , people should drive to work by themselves , it can save time and wo n't be late .", "m : i ca n't agree with you that private cars are the biggest cause of traffic jams .", "m : yes , i also think buses should be the first choice for people ."], "article": "m : too much traffic today . i was late for work again ! f : i know what you mean . i was stuck for 20 minutes ! m : seems to be getting worse every day . f : more people are living in the city , more cars on the road . does n't seem like the problem will get any easier in the future . m : no good for the environment either . pollution is terrible . soon we wo n't be able to breathe the air . f : do n't be so gloomy . everyone 's talking about clean energy nowadays . m : true , that would be great . but it does n't solve the traffic problem . f : that 's right . i think if more people took the bus , then there would be fewer cars on the road . m : the bus ? you ca n't fit anymore people on the bus . they are always crowded ! f : well , then we need more buses .", "id": "train_1551"}