1) You ___ speak with your mouth full. It's impolite. a) should b) have to c) shouldn't d) don't have to 2) Everyone ___ wear a helmet when they're riding a bike. a) has to b) must c) should d) 'd better 3) Sorry, I can't go to the party. I___ do my homework, mum told me. a) should b) have to c) must 4) Sorry, I can't go to the party. I___ do my homework, I need good marks this semester. a) should b) have to c) must 5) You ____ take pictures with flash inside the Art Museum. It's forbidden.  a) can't b) shouldn't c) mustn't d) oughtn't to e) don't have to 6) We___ pay for the tickets because my dad won them a) don't have to b) shouldn't c) mustn't 7) A 3 again?? You ___ study more for next exam or you'll fail the course. a) should b) 'd better c) ought to d) must 8) We have a lot of work tomorrow. You___ be late a) don't have to b) musn't c) shouldn't 9) Bill Gates is a millionaire. He___ work a) mustn't b) needn't c) doesn't need d) doesn't have to e) don't need to 10) We___rush, the plane leaves in only 15 minutes! a) should b) 'd better c) has to 11) They___rush. They've got plenty of time. a) shouldn't b) mustn't c) don't have to 12) In Private Schools in Argentina, students ___ wear uniform a) don't have to b) must c) mustn't d) have to e) has to 13) During the pandemic, everyone ___ wear a face mask a) must b) ought to c) should d) have to e) has to 14) If you have symptoms, you ___ go out. a) shouldn't b) don't have to c) 'd better not

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