• 2021-04-14
    and scientists have yet to develop a magic ________ that keeps the kilos off permanently.?
  • pill

    内容

    • 0

      An apple a day keeps the doctor ________. A: off B: in C: out D: away

    • 1

      After they ________ the first super computers in the 1940s, scientists and engineers began to develop ways to create networks.

    • 2

      Two more teams have dropped out of the league. A: have promenaded down B: have reprimanded for C: have left permanently D: have been absent

    • 3

      Scientists have not yet determined ______. A: all of the effects of pollution on the human body B: how pollution can be controlled successfully C: when the atmosphere first became polluted D: how to wash the black snow clean

    • 4

      We can be partners for now, but ultimately you have to ________ to develop a new software for our project. A: keep up B: take the lead C: make sense D: fire off