1) She _________ work late tonight because she has finished all her tasks for the day. a) have to b) don't have to c) has to d) doesn't have to e) can't 2) We _________ decide right now. We can tell them our answer next week. a) have to b) don't have to c) has to d) doesn't have to e) can't 3) You _________ be 18 years old to see this film. The cinema will not let you in if you are younger. a) have to b) don't have to c) has to d) doesn't have to e) can't 4) He already knows the answer, so he _________ ask the teacher for help. a) have to b) don't have to c) has to d) doesn't have to e) can't 5) I _________ finish this report by 5 PM today. My boss told me it's very important. a) have to b) don't have to c) has to d) doesn't have to e) can't 6) Sorry, you _________ eat or drink inside the library. It's not allowed. a) have to b) don't have to c) has to d) doesn't have to e) can't 7) This is a free event, so you _________ pay for a ticket to get in. a) have to b) don't have to c) has to d) doesn't have to e) can't 8) My sister is a nurse, so she _________ wear a uniform to the hospital every day. a) have to b) don't have to c) has to d) doesn't have to e) can't 9) It's a holiday tomorrow, so we _________ wake up early for work. a) have to b) don't have to c) has to d) doesn't have to e) can't 10) You _________ use a phone on an airplane during takeoff. It's against the rules. a) have to b) don't have to c) has to d) doesn't have to e) can't

Have to, don't have to, can't

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