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unit 9

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  • A person who works in a library
    librarian
  • how many questions did you see?
    six
  • Signals to control the flowing of traffic
    traffic light
  • A person who helps people at traffic crossing.
    crossing guard
  • A person who saves swimmers in trouble
    lifeguard
  • To do something in turns
    take turns
  • To throw trash on the ground
    litter
  • _______________ help us follow the rules in the school library.
    librarians
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