假如你是收银员，请根据菜单给Lucy和Mary结一下账吧！
Waitress: Good morning. Can I help you?
Lucy: Yes, I want a hot dog. Do you want a hot dog, too, Mary?
Mary: No, I don't like hot dogs. I want two hamburgers.
Waitress: And to drink?
Lucy: A cola for me, please.
Mary: And I want some milk, please.
Waitress: OK. Anything else?
Lucy and Mary: No, thanks.
| Food | Drinks |
| Hot dog ……$5. 25 | Juice ……$3. 30 |
| Chicken ……$6. 50 | Milk ……$2. 80 |
| Fish ……$10. 5 | Cola ……$3. 75 |
| Hamburger ……$6. 50 | Coffee ……$5. 15 |
