1) 1. Jessica hasn’t made up her mind about where to go to school. She __________ attend Duke University. She just doesn’t know yet. a) A. mustn’t b) B. may not c) C. needn’t d) D. can’t 2) 2. This box isn’t as heavy as it looks. You ________ help me with it. Thanks anyway for offering to help. a) A. must b) B. mustn’t c) C. might d) D. needn’t 3) 3. You ________ play loud music at night. The neighbours will call the police. a) A. mustn’t b) B. needn’t c) C. might not d) D. couldn’t 4) 4. You __________ stand up. There are a lot of seats available on the bus. a) A. couldn’t b) B. mustn’t c) C. needn’t d) D. might not 5) 5. People who use public parks __________ clean up after themselves. a) A. must b) B. may c) C. ought d) D. might 6) 6. This library book is overdue. I _________ better return it today. a) A. need b) B. must c) C. might d) D. had 7) 7. Our company provides free advice on the use of our products. You _________ pay us.  a) A. must b) B. have to c) C. needn’t d) D. mustn’t 8) 8. We_______ open the lion’s cage. It is contrary to Zoo regulations.  a) A. must b) B. mustn’t c) C. needn’t d) D. should 9) 9. I arrive on time, so please start dinner without me.  a) A. could b) B. may c) C. may not d) D. should 10) 10. Young people ______ obey their parents.   a) A. must b) B. will c) C. may d) D. ought to

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