Choose the correct option. Write the answers in your notebook.
1 I'm going to China soon. I must / don't have to buy a guidebook. 2 You can never find your passport. You should / shouldn't put it in a safe place. 3 Do we have to / Should we get a visa for the USA? 4 The plane leaves at 9 a.m., but we mustn't / don't have to be there until 7 a.m. 5 I shouldn't / ought to pack my bags. We leave in an hour. 6 It's going to be very hot at the beach. We must / mustn't forget the sun cream.
