• 2022-06-07
    Before the machine is switched on, ensure that no one can _________ when the machine is running.
    A: endange
    B: endangered
    C: Be endangering
    D: e endangered
  • D

    内容

    • 0

      How can you keep the machine ________ when you’re away? A: run B: to run C: running D: being run

    • 1

      How can you keep the machine ____when you are away?

    • 2

      Every one of us has ____ machine; _____ machine is _____ brain. A: a… the… the B: a… a… a C: a… a… the D: the… a… a

    • 3

      According to passage, what is one of the best ways to preserve endangered species?

    • 4

      Gear shaping machine can machine the worm gears