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YP1 5A gram wb p 53

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  • The high cost has discouraged me from building a supercomputer.
    I have been discouraged from building a supercomputer by the high cost.
  • The smoke _____ by escaping gas. (past continuous passive / cause)
    was being caused
  • Temperature changes _____ by the scientists. (future passive / track)
    will be tracked
  • The raw materials _____ into a unique substance. (present perfect passive / transform)
    have been transformed
  • The wire was attached to the battery, which started the experiment.
    We attached the wire to the battery, which started the experiment.
  • The teacher was happy that our homework _____ on time. (simple past passive / submit)
    was submitted
  • Experts consider scientists from your country to be among the best in the world.
    Scientists from your country are considered (by experts) to be among the best in the world.
  • We were told that more research _____ if there’s enough funding. (modal + passive / conduct))
    might be conducted
  • They used the smartphone to make a video of our experiment.
    The smartphone was used to make a video of our experiment.
  • The powder is being dissolved in the liquid.
    We are dissolving the powder in the liquid.
  • The fish had been released into the stream by the biologist.
    The biologist had released the fish into the stream.
  • You can find the winners on our website or in our magazine.
    The winners can be found on our website or in our magazine.
  • The innovation prizes _____ right now. (present continuous passive / win)
    are being won
  • The other team’s hypothesis _____ by the teacher. (past perfect passive / question)
    had been questioned
  • The results of the experiment _____ by the surprised researchers. (simple past passive / confirm)
    were confirmed
  • An experiment was designed by the scientists to test the quality of the gold.
    The scientists designed an experiment to test the quality of the gold.
  • The winner of the competition _____ by the committee. (present perfect passive / select)
    has been selected
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