1) You ___________ wear a uniform at school. (obligation) a) mustn't b) have to 2) Jim __________ work on Saturdays. (obligation) a) has to b) have to 3) You _________ wear a mask if you go outside. (obligation) a) have to b) can 4) We ___________ cook lunch every day. (obligation) a) have to b) has to  5) You__________clean the kitchen because I did it. (not necessary) a) don't have to b) mustn't 6) He ___________to wear a uniform at school. (obligation) a) has b) must 7) Jess __________ work on Saturdays. (not necessary) a) don't have to b) doesn't have to 8) I ________ go home because it's late . (obligation) a) have to b) can 9) They__________ pay for the ticket. It is free. (not necessary) a) don't have to b) mustn't 10) Babies _________ eat solid food like nuts; it is very dangerous for them. (prohibition) a) can't b) don't have to 11) You _________ enter this area without a safety helmet. It's a strict company rule. (prohibition) a) can't b) don't have to 12) We _________ go hiking today because the trail is closed due to dangerous weather conditions. (prohibition) a) can't b) don't have to

Prohibition and necessity: can't, have to/ has to, don't have to/ doesn't have

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