options: m : it ' s good for you to study at college in japan . m : you did some really good shopping in china . m : you stayed with a friend in beijing ? that ' s cool , bob ! m : that ' s good for you to stay with a friend on vacation .
article: f : where did you go on vacation ? m : i went to san francisco , it 's a really pretty city . f : why san francisco ? m : oh my sister works there . i stayed with her . she loves shopping , so we went shopping every day . look , i got this sweater . f : nice , i did n't go anywhere on my last vacation . i did n't have enough money to go anywhere . m : oh , that 's too bad . f : oh , not really . i actually enjoyed my vacation a lot . a friend from college stayed with me for a week . we just talked and watched a lot of old movies .