Luyện ngữ pháp - English Grammar in Use - Intermediate (Unit 31: Have to and must))


Complete the sentences with mustn't or don't/doesn't have to.
  1. I don't want anyone to know about our plan. You tell anyone.
  2. Richard wear a suit to work, but he usually does.
  3. I can sleep late tomorrow morning because I go to work.
  4. Whatever you do, you touch that switch. It's very dangerous.
  5. There's a lift in the building, so we climb the stairs.
  6. You forget what I told you. It's very important.
  7. Silvia get up early, but she usually does.
  8. Don't make so much noise. We wake the children.
  9. I eat too much. I'm supposed to be on a diet.
  10. You be a good player to enjoy a game of tennis.
Exercises - 31.3


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