1) I __________ feed my pet 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) You ___________ wear a uniform at school.  a) mustn't b) have to c) doesn't have to d) can't 4) Jim __________ work on Saturdays.  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 7) _________ I ask you a question, please? a) Must b) Can't c) May d) May not 8) We are in the library. We __________ be quiet. a) has to b) must c) mustn't d) can 9) Lizards ________ run faster than me. a) can b) must c) may d) have to 10) Sally ___________ cook lunch every day. a) can b) has to c) have to d) mustn't 11) You _________ eat at lessons. a) mustn't b) don't have to c) have to d) need 12) ________ I come in? - Yes, you _______ a) Can b) Have c) Must, can d) May, may 13) Birds ________ talk. a) mustn't b) can't c) may not d) don't have to 14) You__________clean the kitchen because I did it. a) don't have to b) needn't c) must d) mustn't 15) __________I borrow your phone ? I need to call my mom. a) can b) have to c) must

Must, mustn't, have to, don't have to, needn't, can, can't

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