1) You __________ apologise, it isn't necessary. a) mustn't b) don't have to c) can't 2) You ______ tell the boss what happened, or he'll fire you. a) mustn't b) don't have to c) can 3) I ________ wear a tie; I do it because I like wearing ties. a) mustn't b) can't c) don't have to 4) I ________ be late. It's the most important meeting of the year. a) mustn't b) don't have to c) can 5) You __________ go now; you can stay a bit longer. a) mustn't b) don't have to c) can't 6) I _____ leave early because I wasn't feeling well. a) have to b) had to c) must 7) You _____ do something to solve this problem. a) must b) have to c) can 8) I don't like these clothes, but I _____ wear them at work. a) must b) can c) have to

Must, have to, can

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