You _______  smoke., must, musn't, can, Cat ________ fly., musn't, can't, might, He ________ in hospital. Because he isn't at school., don't have to, have to, may, I _________ study math. I have an exam tomorrow, can, might, must, She ________ read this book. She has a project about this book, musn't, might, have to.

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