1) Firefighters _______ wear a uniform a) MUST b) HAVE TO c) DON'T HAVE TO 2) He ________ stop biting his nails. a) MUST b) HAVE TO c) MUSTN'T 3) You _______ to consider going vegan. It's much healthy and good for the planet. a) SHOULD b) SHOULDN'T c) OUGHT 4) You _______ smoke here, it's forbidden. a) MUST b) MUSTN'T c) DON'T HAVE TO 5) You _______ to bring a coat. It's always hot in Hawaii! a) have b) must c) don't have 6) You _______ pay for your tickets now, but you can if you want. a) doesn't have to b) don't have to c) must 7) If you want to win the race, you _______ train harder. a) ought b) mustn't c) should 8) People _________ pay taxes.  a) must b) have to c) don't have to 9) I _________ remember to get a present for Daisy. a) must b) have to c) shouldn't 10) You _________ drink so many soda drinks. They're bad for your health. a) should b) must c) shouldn't

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