1) 1. You \_\_\_ do your homework. a) must b) mustn't 2) 2. She \_\_\_ wear a uniform at school, it's their teacher's decision.  a) has to b) must 3) 3. We \_\_\_ be late for the exam! a) mustn't b) don't have to 4) 4. You \_\_\_ eat so much fast food. It’s not healthy. a) must b) shouldn't 5) 5. They \_\_\_ bring their own lunch if they want to. a) mustn't b) don’t have to 6) 6. I \_\_\_ go to bed early tonight. I’m very tired. a) should b) have to 7) 7. You \_\_\_ wear a helmet when you ride a bike. a) must b) have to 8) 8. He \_\_\_ bring his book tomorrow. It’s not necessary. a) mustn't b) doesn’t have to 9) 9. We \_\_\_ speak during the test. a) mustn’t b) don't have to 10) 10. You \_\_\_ study more if you want to pass the test. a) have to b) don't have to 11) 11. I \_\_\_ drink more water every day. a) have to b) should 12) 12. You \_\_\_ shout in the library. a) don't have to b) mustn't 13) 13. They \_\_\_ get up early on Sundays, it's day off. a) don’t have to b) mustn't 14) 14. She \_\_\_ clean her room before her friends come over. a) has to b) have to 15) 15. We \_\_\_ be careful when we cross the street. a) must b) have to

Must, have to, should

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