Решение:
- 1. You must be quiet in the library. It's a rule. (Обязательное правило)
- 2. I don't have to wake up early tomorrow because it's Sunday. (Нет необходимости)
- 3. She must wear a uniform at her school. All students do. (Обязательное требование)
- 4. You look tired. You should go to bed earlier tonight. (Совет)
- 5. Students mustn't run in the corridors — it's dangerous. (Строгий запрет)
- 6. We have to buy tickets in advance; they're always available at the door. (Необходимость, связанная с внешними обстоятельствами)
- 7. He shouldn't eat so many sweets. It's bad for his teeth. (Совет, предостережение)
Ответ: 1. must, 2. don't have to, 3. must, 4. should, 5. mustn't, 6. have to, 7. shouldn't.