1) I'm sorry, I _____ go to the party with you. My son is sick. a) must b) can't c) mustn't 2) I ............. go to the doctor. I’m feeling ill. a) can't b) can c) must 3) Everybody ________ be asleep. The lights are all off. a) can b) must c) mustn't 4) You ........... be home by 10 o’clock. I’ll be waiting for you. a) must b) can c) can't 5) I’m afraid I ............. go to the dentist with you. a) mustn't b) can c) can't 6) This shoes _________ be from Lucy because they are very small. a) must b) mustn't c) can 7) I’ve already told you! You ................ eat any more sweets! a) mustn't b) can't c) must 8) They ........... give alcohol to the animals. a) mustn't b) can c) must

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