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Must, Have to, Mustn´t, Not Have To

  •  English    24     Public
    obligation, prohibition and lack of necessity
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  • We have casual Friday at the office so we ________ wear smart clothes on that day.
    don´t have to
  •  15
  • He _____________ get to work by 9am.
    must / has to
  •  15
  • You ____________ smoke here. It's forbidden.
    mustn´t 
  •  15
  • Children ____________ be careful on the internet.
    must / have to
  •  15
  • You _______ wear a helmet when you ride a bike.
    must / have to
  •  15
  • She ____________ clean her room yesterday before she could go out.
    had to
  •  15
  • You _________ do this job without proper training, it´s illegal.
    mustn´t
  •  15
  • She ____________ finish her work today. She can finish it next week.
    doesn´t have to
  •  15
  • He __________ wear a suit and tie at the office, it´s mandatory.
    must / has to
  •  15
  • Mark __________ be rude to the boss or he will lose his job!
    mustn´t 
  •  15
  • He _________ speak loudly at the cinema.
    mustn´t 
  •  15
  • They _______ go to school yesterday because it was Sunday.
    didn´t have to
  •  15
  • You ____________ spill liquid on electronic devices.
    mustn´t 
  •  15
  • He __________ leave until he finishes his work.
    mustn´t
  •  15
  • He _______ do a lot of homework last weekend.
    had to
  •  15
  • You __________ tell anyone my secret. I don´t want anyone to know.
    mustn´t 
  •  15
  • Don´t worry! You __________ tell me your secret, I don´t need to know.
    don´t have to
  •  15
  • People __________ drive on the right in Spain.
    must / have to
  •  15
  • She ___________ wear a dress, she can wear a suit if she wants.
    doesn´t have to
  •  15
  • You ________ stop when the light turns red.
    must / have to
  •  15
  • You _______ wear a seatbelt while driving.
    must / have to
  •  15
  • The museum is free. You _______ pay.
    don't have to
  •  15
  • He's a billionaire. He _______ work.
    doesn't have to
  •  15
  • She _______ cook last night because she went to a restaurant.
    didn't have to
  •  15