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Modals of Obligation

  •  English    24     Public
    must, have/has to, don't/doesn't have to, mustn't
  •   Study   Slideshow
  • We have a lot of work tomorrow. You ... be late.
    musn't
  •  15
  • You ... tell anyone what I just told you. It's a secret.
    musn't
  •  10
  • The museum is free. You ... pay to get in.
    don't have to
  •  15
  • Children ... tell lies. It's very naughty.
    musn't
  •  15
  • John's a millionaire. He ... go to work.
    doesn't have to
  •  15
  • I ... do my washing because my mother does it for me.
    don't have to
  •  20
  • We ... rush. We've got plenty of time.
    don't have to
  •  20
  • You ... smoke inside the school.
    mustn't
  •  10
  • You can borrow my new dress, but you ... get it dirty.
    mustn't
  •  20
  • We ... miss the train, because it's the last one tonight.
    mustn't
  •  20
  • She ... do this work today, because she can do it tomorrow.
    doesn't have to
  •  10
  • I ... clean the floor today because I cleaned it yesterday.
    don't have to
  •  15
  • We ... forget to lock all the doors before we leave.
    mustn't
  •  15
  • We ... stay in a hotel in London; we can stay with my brother.
    don't have to
  •  15
  • Sally ... finish her project before its deadline or she'll be kicked out of the school.
    has to
  •  15
  • They ... get up early today, because it's Sunday.
    don't have to
  •  10