1) I __________ feed my pets every day.  a) mustn't b) can c) have d) must 2) Crocodiles _________ climb trees. a) mustn't b) have to c) can't 3) Pupils in the UK ___________ wear a uniform at school.  a) mustn't b) have to c) doesn't have to d) can't 4) Jim __________ work on Saturdays, he helps in his parents' shop.  a) has to b) have to c) don't have to d) mustn't 5) Birds ________ sing. a) can't b) can c) must d) needn't 6) You _________ wear warm clothes in winter. a) mustn't b) doesn't have to c) have to d) must 7) She ______ be late for the bus. a) must b) cannot  c) mustn't  8) We are in the library. We __________ be quiet. a) has to b) must c) mustn't d) can 9) Horses ________ run faster than people. a) can b) must c) may d) have to 10) Sally ___________ cook lunch every day, because her daughter doesn't go to a school canteen. a) can b) must c) have to 11) You _________ eat at lessons. a) mustn't b) don't have to c) have to d) need 12) Birds ________ talk. a) mustn't b) can't c) needn't d) don't have to 13) You__________clean the kitchen because I did it. a) doesn't have to b) needn't c) must d) mustn't 14) __________I borrow your phone ? I need to call my mom. a) Can b) Have to c) Must  15) It's warm today , you __________wear a warm jacket. a) can b) don't have c) mustn't d) have to 16) He ___________to wear a uniform. a) has b) must c) can 17) Mum, ________ I go out? No, you can't. You _________ do your homework first. a) can, have to b) can, has to c) must , must 18) I ______ wash my car because my brother washed it in the morning . a) don't have to b) don't have c) must d) mustn't 19) I ________ go home because it's late . a) have to b) needn't c) must 20) My sister _________ walk to school, her classmate's mum gives them a lift. a) don't have to b) haven't to c) doesn't have to d) mustn't

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