1) Look at those clouds I think it............. rain but I am not sure. a) can b) might c) must 2) This is impossible! It ............. be the answer! a) can't be b) may be c) must be 3) Well done! You..........very happy! a) may be b) must be c) might be 4) I've no idea where Jane is. She ............ anywhere! a) may be b) must be 5) I'm not sure. I ............go on holidays. a) must b) may 6) That..........David. He doesn't have a bike. a) can't be b) must be c) may be 7) Lisa isn't here yet. She..........on her way. I'm sure. a) can't be b) must be c) may be 8) There's someone at the door. It ...........the postman or my cousin. a) must be b) may be c) can't be

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