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Rules: Can/Must/Mustn't

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  • You _____ take any pictures.
    mustn't
  • You _____ be quiet.
    must
  • You ______ talk quietly. 
    can
  • You _____ make a mess at home.
    mustn't
  • You _____ ask questions. 
    can
  • You _______ talk to your teacher rudely.
    mustn't
  • You _____ do your homework in a library.
    can
  • You _____ look both sides before crossing. 
    must
  • You ______ do your exam carefully.
    must