{"answers": "C", "options": ["m : what book do you want to buy ?", "m : the class is over . let 's have lunch together .", "m : of course . then i 'll borrow this book .", "m : sorry that it 's late to return the book ."], "article": "m : excuse me , madam ? f : yes ? m : how long can i keep the book ? f : for one month . please make sure you return the book before it 's due .", "id": "train_5593"}