Wybierz odpowiedni czasownik modalny. 1. You mustn't / don't have to take part in all extra activities. They're optional. 2. I have to / can hand in this essay tomorrow and I've only done half a page! 3. You mustn't / must listen to music in class. 4. I don't have to / can't go out tonight; I have to study for the Exam. 5. I hope everyone will be able / won't be able to go on the School Trip this year.