Read examples 1-6. Write A (advice), O / P (obligation or prohibition) or N / O (no obligation).
1. You must be careful. _____
2. You mustn’t listen to music when you’re cycling. _____
3. You have to concentrate if you’re on the road. _____
4. You don’t have to practise all day every day. _____
5. You should look where you’re going. _____
6. You could have a break sometimes. _____