{"answers": "A", "options": ["m : indeed , especially the last city of guilin . it is a genuine heaven on earth .", "m : though i only visited shanghai after beijing , i was impressed by china .", "m : but it 's a pity that my trip ended in nanjing as i did n't visit guilin at last .", "m : after beijing , we went directly to guilin before leaving china . impressive ."], "article": "f : nice to see you again , mike . how was your trip to china ? m : it was great . i flew to beijing with my wife last month and i stayed there for 3 days . there were so many things to see and so many places of interest to visit in beijing that we really could n't decide whether to leave or stay . f : have you visited other places in china ? m : yes , then we visited shanghai and nanjing , each city for 2 days . finally we paid a visit to guilin , where we spent 3 days . they were so beautiful that we were deeply impressed by these cities . f : sounds great .", "id": "train_2738"}