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

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

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