Составить список советов по подготовке к путешествию: 5 предложений с must/have to; 2 предложений с mustn`t; 5 предложений с don`t have to. всего должно получиться 12 предложений.

You must buy a travel insurance. You must take a credit card with you. You must take an extra phone battery You have to get a visa in advance. You have to make extra copies of your passport. You don't have to learn basic phrases in the language of the country you visit. You don't have to buy guidebooks. You don't have to book your tickets online. You don't have to use a map. You don't have to fly non-stop.   You mustn't carry large objects on board. You mustn't get distracted.