Double Cheese Burger 双层奶酪汉堡
Sprite 雪碧
Clerk：Can I help you?
Susan：I’d like the Double Cheese Burger Meal, please。
Clerk：What kind of drink would you like with that?
Susan：Just a Coke will be fine。
Clerk：Would you like to supersize your meal? For only 2 RMB more, you’ll get a large Coke and fries instead of the medium. And today we are offering free toys in all the meal boxes。
Susan：That sounds good. Thanks. I’d like that. Actually I’d like a Sprite instead of a Coke. Thanks。
Clerk：That’s not a problem, Miss. Will that be it?
Susan：Yes, that’s all。
Clerk：That’ll be twenty-five RMB,
