6a 8.3) Listen and circle the correct words. 1 You should / shouldn't buy a travel card. 2 You have to / don't have to buy a ticket. 3 You should / shouldn't wear your seat belt. 4 You should / shouldn't put your bag there. 5 You have to / don't have to show your passport. 6 You should / shouldn't drive when you're tired. 7 You have to / don't have to pay to visit the museum. 8 You have to / don't have to come with me. 9 You should / shouldn't take a map with you.