{"answers": "B", "options": ["m : we are still having a class , so i ca n't give you this book .", "m : it 's interesting to meet someone who also wants this book in the bookstore .", "m : we are in the library , so find the book by yourself . i ca n't give it to you .", "m : well , even though we 're in a bookstore , i ca n't give you this book ."], "article": "f : excuse me , sir , where did you find this book ? m : i can give it to you if you want . i 've changed my mind , and do n't want to buy it anymore . f : oh , thanks very much , sir .", "id": "train_6728"}