1) You..........be late, or you won't be able to take the exam. a) must  b) mustn't c) don't have to d) may 2) You...........bring a pen.We can provide them. a) must b) mustn't c) don't have to d) may 3) You.............drink water in the exam,butnothing else. a) must b) mustn't c) don't have to d) may 4) You...........switch off mobile phones. a) must b) mustn't c) don't have to d) may 5) You.......... talk.If you do,you will have to leave. a) must b) mustn't c) don't have to d) may 6) You........stay until the end of the exam if you finish before them. a) must b) mustn't c) don't have to d) may

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