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Close up B1+ U5

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  • You ...... become successful if you don't try hard.
    can't
  • John ...... worry about his future. He's very talented.
    shouldn't
  • That ..... possibly be Louis. He's away from the meeting.
    can't
  • She ........ be very brave to climb that mountain in the winter.
    must
  • ....... I borrow you laptop for a few days?
    May/ Could
  • ...... to talk about pollution in class tomorrow? (We)
    Do we have to
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