1) you ___ go the party if you finish your homework. a) can b) mustn’t c) might d) should 2) She ____ speak three languages fluently.  a) could b) may c) must d) might 3) They ___ have taken the wrong train; they are not late. a) couldn’t  b) must c) might d) should  4) You ___ wear a helmet while riding a bike for safety. a) may b) must c) can d) might 5) He said he ___ help us with the project tomorrow. a) may b) must c) can d) should  6) We ___ leave now if we want to catch the bus. a) might b) can c) should d) must 7) She ___ be at home, her car isn’t in the parking lot. a) may not b) couldn’t c) can’t d) might 8) You ___ forget to bring your passport when travelling abroad. a) mustn’t b) can’t c) might d) should 9) if you want to improve your English, you ___ practise every day. a) may  b) can c) must d) might 

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