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Must, Mustn't, Have to, Don't have to

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  • You _________ have a valid passport if you want to fly to the USA.
    must / have to
  • Sarah ________________ go to school on the weekends.
    doesn't have to
  • What does this sign express: Obligation, prohibition, or permission?
    Obligation (you must stop)
  • They _______ go to the shopping mall. Everything can be bought online.
    don't have to
  • You _____ be a member to buy a ticket. It's open to everyone.
    don't have to
  • We use "mustn't" to show...
    prohibition
  • You _____ be over 18 to drive a car in Brazil.
    must / have to
  • You ______ drink and drive.
    must not / mustn't
  • Complete the sentence: "She ________ drive her car to the store; it's right around the block, so she can easily walk there."
    doesn't have to
  • We __________ wear a tie to school but we can if we want to.
    don't have to
  • Make a question using "must": / uniform / at / students / wear / Mendel?
    Must students wear uniform at Mendel?
  • What does this sign express: Obligation, prohibition, or permission?
    Prohibition (you can't/must not cross the road)
  • We use "must" or "have to" to show...
    obligation
  • We use "don't have to" to say that something...
    isn't necessary
  • You _________ finish your food or people will think you don't like it.
    must / have to
  • You __________ get a visa if you are staying there for less than one month.
    don't have to
  • Students _____ look at their phones during the test.
    must not / mustn't
  • Make a question using "have to": room / Mike / his / clean / today?
    Does Mike have to clean his room today?
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