• 2022-06-06
    One of the reasons why men invented certain sounds to express thoughts and actions is that _______ .
    A: they could agree upon certain signs
    B: they could write them down
    C: they could communicate with each other
    D: they could combine them
  • C

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    • 0

      I'm certain that I could be of some _____ to you.

    • 1

      Which of the following is wrong in explaining a notice? A: It could be in the form of leaflets and public signs B: It could be in the form of emails and posters C: It is used to inform people of certain past events or activities D: It is usually put in a public place

    • 2

      The boy studied the signs for over an hour, but still could not __________ them, so he turned to his teacher for help.

    • 3

      The boy studied the signs for an hour, but still could notunderstand them, so he turned to his teacher for help.

    • 4

      When taking a test, students who are nervous could treat it as a______because this could put them at ease.