Użyj w zdaniach wyrazów z nawiasów. Wybierz odpowiedni wyraz pasujący do zdania.
1. It's very important to bring some food and water with you. (must / have to) 2. You are not allowed to use your mobile phone on the set. (musn't / don't have to) 3. If you are sixteen or under it's compulsory to bring a parent with you. (must / have to)