Ex. 4. Choose the correct options to complete the quotes. We have a strict uniform policy at my school. Boys (1) have to / can't wear black pants, but girls (2) shouldn't / can choose a skirt or pants. Girls' skirts (3) mustn't / must cover the knees. You (4) can't/ don't have to loosen your tie at school during the day, and girls (5) have to / mustn't let their socks fall down.' - Park, Korea We don't have a uniform, so we (6) can't / don't have to wear a tie or jacket. We (7) can/ should wear mostly what we like, though we (8) have to / mustn't come to school in beach clothes or something like that. The rules aren't specific, but they say we (9) mustn't/ should look neat.' - Sofia, Italy