1) No, thanks. I ____ eat any more cake. I'm on a diet a) mustn't b) shouldn't c) both 2) You ___ tell anyone what I've just told you. It's a secret a) mustn't b) don't have to c) both 3) Service is included, so you ___ leave a tip a) mustn't b) shouldn't c) don't have to 4) Living at home is great. I ____ do anything because my mom does it all for me! a) mustn't b) don't have to c) both 5) You ___ pay for food and drinks separately a) have to b) must c) should 6) You ___ get a visa if you want to go to Cuba a) must b) have to c) both 7) You ___ drive more than 70 mph a) mustn't b) don't have to c) shouldn't 8) You ____ pay a fine if you don’t return your library books on time a) ought to b) have to c) both 9) You ___ wait here before showing your passport a) must b) should c) have to 10) Jerry ___ get up early this morning. He isn’t going to work a) doesn’t have to b) mustn’t c) both 11) It’s Hannah’s birthday tomorrow. I ___ forget to phone her a) mustn’t b) shouldn’t c) both 12) You ___ leave your hotel room before 12 o'clock a) must b) should c) have to 13) You ___ touch electrical things when your hands are wet. It’s very dangerous. a) mustn’t b) don’t have to c) both 14) I think you ____ go to bed early tonight. You look really tired. a) should b) must c) both 15) You ___ leave your bags unattended a) shouldn't b) don't have to c) mustn't 16) When I was a child, I ___ tidy my room every weekend a) had to b) must c) both 17) If you’re late for class, you ___ say sorry to the teacher a) ought to b) should c) both 18) You ___ fasten your seatbelt now a) must b) have to c) should 19) He ___ watch so much TV. It’s a waste of time a) doesn’t have to b) shouldn’t c) both 20) You ___ pay on Sundays a) don't have to b) shouldn't c) mustn't

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