The librarian doesn't have/need to bring an umbrella., The journalist has to wear a face mask in public., Passangers must wear a seatbelt. , Students must speak English., A builder shouldn't be afraid of hights, The vet doesn't have/need to wake up early on Saturday., You mustn't eat or drink in class. , A nurse has to help the patients, The company director should get on well with the employess, The mechanic mustn't smoke here. , The plumber don't have to/ need to wear a coat., Children mustn't use mobile phones in class, The shop assistant must be polite with the customers, Recepcionists don't have/need to speak so many different languages. Three are enough,

Must, Mustn't, Have to, Don't have/need to, should, shouldn't

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