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Q. Change the voice: This machine must not be used after 5.30 p.m.
  • A. You can't use the machine after 5.30 p.m.
  • B. You mayn't use the machine after 5.30 p.m.
  • C. You need not use the machine after 5.30 p.m.
  • D. You must not use the machine after 5.30 p.m.