{"answers": "D", "options": ["f : so you flew from shanghai to frankfurt to make a speech , right ?", "f : so you flew from shanghai to frankfurt to attend the trade fair , right ?", "f : so you flew from shanghai to frankfurt to attend the meeting , right ?", "f : when did you go to frankfurt to attend the trade fair ?"], "article": "f : hey mike , good to have you back . you look exhausted . m : hi , mary . yeah . i 'm totally beat . i can barely keep my eyes open . f : was it a rough trip ? m : well , it was actually pretty productive . but all the flying really got to me . f : oh , jet lag . m : yep . i flew from beijing to boston for a meeting and then got on a plane to go to the trade fair in frankfurt . then back to beijing before catching a train back here to shanghai .", "id": "train_3365"}