4A GRAMMAR obligation and prohibition: have to, must, should

a Circle the correct verb. Tick (✓) if both are possible. 1 No, thanks. I mustn’t / shouldn’t eat any more cake. I’m on a diet. ✓ 1 No, thanks. | mustn’t ☐ shouldn’t eat any more cake. I’m on a diet. Y ☐ You(mustn’t)/ don’t have to tell anyone what I’ve just told you. It’s a secret. 3 Living at home is great. | mustn't ☐ don't have to do anything because my mum does it all for me! 4 You must ☐ have to get a visa if you want to go to Cuba. 5 You ought to ☐ have to pay a fine if you don’t return your library books on time. 6 Jerry doesn’t have to ☐ mustn’t get up early this morning. He isn’t going to work. 7 It's Hannah's birthday tomorrow. | mustn't ☐ shouldn't forget to phone her. 8 You mustn't ☐ don’t have to touch electrical things when your hands are wet. It's very dangerous. 9 | think you should ☐ must go to bed early tonight. You look really tired. 3 Living at home is great. I mustn’t / don’t have to do anything because my mum does it all for me! 4 You must / have to get a visa if you want to go to Cuba. 5 You ought to / have to pay a fine if you don’t return your library books on time. 6 Jerry doesn’t have to / mustn’t get up early this morning. He isn’t going to work. 7 It’s Hannah’s birthday tomorrow. I mustn’t / shouldn’t forget to phone her. 8 You mustn’t / don’t have to touch electrical things when your hands are wet. It’s very dangerous. 9 I think you should / must go to bed early tonight. You look really tired. 10 When I was a child, I had to / must tidy my room every weekend. 11 If you’re late for class, you ought to / should say sorry to the teacher. 12 He doesn’t have to / shouldn’t watch so much TV. It’s a waste of time. b Complete the sentences with must, mustn’t, have to, or don’t have to. Sometimes two answers are possible. Please pay for Service included. Tip optional. Wait here before No suitcases or bags to be left unattended Palm Hotel > <S Checkout at noon 1 You have to pay for food and drinks separately. 2 You drive at more than 70 mph. 3 Service is included, so you leave a tip. 4 You wait here before showing your passport. 5 You pay on Sundays. 6 You fasten your seatbelt now. 7 You leave your bags unattended. 8 You leave your hotel room before 12 o’clock. ACTIVATION

Test your memory. Cover the sentences in b. Look at the pictures and remember the sentences.