What does “a set of lights” mean?












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I read this dialog from a certain school's book.
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ECC English Online School



What does a set of lights mean? Does is mean traffic lights ? If so , why use SET and not just TRAFFIC lights ?









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    I read this dialog from a certain school's book.
    enter image description here



    ECC English Online School



    What does a set of lights mean? Does is mean traffic lights ? If so , why use SET and not just TRAFFIC lights ?









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      I read this dialog from a certain school's book.
      enter image description here



      ECC English Online School



      What does a set of lights mean? Does is mean traffic lights ? If so , why use SET and not just TRAFFIC lights ?









      share














      I read this dialog from a certain school's book.
      enter image description here



      ECC English Online School



      What does a set of lights mean? Does is mean traffic lights ? If so , why use SET and not just TRAFFIC lights ?







      grammar





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      GugmaGugma

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