1) People ... make a lot of noise in a hospital a) must b) mustn’t c) don’t have to 2) You ... study a lot to be an architect a) must b) mustn’t c) have to 3) People who work in a taxi ... wear a uniform a) doesn’t have to b) don’t have to c) mustn’t 4) You ... drink and drive a) don’t have to b) mustn’t c) has to 5) She ... visit her grandparents more often! a) have to b) must c) has to 6) You ... apologise; it isn't necessary. a) have to b) don't have to c) mustn't

Modal verbs - must - have to - mustn't - don't have to

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