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Obligation, prohibition & lack of necessity

  •  English    17     Public
    Practice must/ have to for (internal/ external) obligation, mustn't for prohibition and don't have to for lack of necessity.
  •   Study   Slideshow
  • I ... go now. My bus leaves in 15 minutes.
    have to
  •  15
  • We ... use our phones in class.
    mustn't
  •  10
  • ........ (I) to buy bread before coming back home tonight?
    Do I have to
  •  15
  • I ...... make my bed. My mum makes it for me every morning.
    don't have to
  •  5
  • You .... take photos in here. It is prohibited.
    mustn't
  •  20
  • My brother ...... work at the weekends, but he doesn't like it.
    has to
  •  20
  • (you) ...... pay much for your smartphone? No, I didn't. It was a gift.
    Did ... have to
  •  25
  • I ....... forget to call grandma before going on holiday.
    mustn't
  •  25
  • I ..... remember to buy some flowers tonight. It's my wife's birthday!
    must
  •  25
  • We ...... wear a uniform at school. It is black and white with magenta inserts.
    have to
  •  15
  • You .......... park here. There's not enough space down there.
    have to
  •  10
  • (she) ...... go to bed early on weekdays? Yes, she starts work at 7 every day.
    Does ... have to
  •  10
  • She ....... clean her bedroom every day. Her parents are very strict.
    has to
  •  10
  • You ...... stay at home with me these days! I'm crippled!
    must
  •  20
  • I ... go now. My favourite series starts at 9.
    must
  •  15
  • You ... show a valid passport at the customs.
    must
  •  25