{"answers": "B", "options": ["f : well , mountain climbing helps build muscles , but it 's just hiking next weekend .", "f : i know mountain climbing is good for my strength and balance , but i feel nervous .", "f : there 's no need . i alway go mountain climbing to build my strength and balance .", "f : sure , dad . i will join you next weekend so as to improve confidence and balance ."], "article": "m : hi jessie . do you have any plans for next weekend ? f : not at all , david . m : do you want to join me to go mountain climbing next weekend ? f : mountain climbing ? me ? m : yes , you . f : why me ? m : you need some exercise . mountain climbing is one of the best ways to build your strength and balance . f : wait a minute , are you talking about hiking or mountain climbing ? m : mountain climbing , the tougher one . f : i never did that before . do i need any training before i go ? m : yes . you better take some instructional courses at the climbing gym .", "id": "train_3942"}