Odpowiedź:
1. You don't have to, but you should wear a white shirt and you must wear a cup.
2. Well, you have to be polite, of course.
3. No, you don't have to. Nick carries her things...
4. No, Tim. You musn't buy her presents and you musn't take photos.
5. Yes, you have to work on Saturdays, but not on Sundays.
