1) You ............ come with us if you don't want to. a) have to b) don't have to c) mustn't 2) I ............. visit my grandma more often. a) has to b) mustn't c) have to 3) Look at the sign! You ............. take photos in the gallery. a) mustn't b) must c) don't have to 4) You ..................... feed the dog, I've already done it. a) mustn't b) have to c) don't have to 5) You ............. study harder if you want to get a good mark. a) can b) have to c) should 6) You .......... give the book back tomorrow. I only have English on Monday next week. a) don't have to b) mustn't c) can't 7) I ............ leave now or I will miss the bus. a) mustn't b) have to c) can't 8) You .............. smoke in the hospital. a) mustn't b) don't have to c) have to 9) I've already phoned Jane, you ........... do it. a) don't have to b) have to c) mustn't 10) A psychologist .............. be a good listener. a) shouldn't b) doesn't have to c) has to 11) You ................ buy her that present. She doesn't like flowers. a) mustn't b) shouldn't c) don't have to 12) You ............. tell Adam about the party. It is a surprise. a) have to b) mustn't c) doesn't have to 13) His teacher gave him a lot of homework and he ....... do it for tomorrow. a) should b) has to c) have to 14) Here in NY we drive on the right. You ................ drive on the left! a) must b) have to c) mustn't d) don't have to 15) She ___________ go everywhere by subway. She can take the bus a) don't have to b) doesn't have to c) mustn't

MODALS of obligation / prohibition

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