Cover of the textbook English Grammar in Use

The key answer of exercise 81.1

The key to exercise solutions in chapter Unit 81 - -'s and of ... for the textbook English Grammar in Use with authors Raymond Murphy from Cambridge University Press


In some of these sentences, it is more natural to use -'s or -'. Change the underlined parts where necessary.


  1. OK
  2. Chris's children
  3. your friend's umbrella
  4. OK
  5. James's daughter
  6. Helen and Andy's son
  7. OK
  8. OK
  9. Your children's friends
  10. OK
  11. Our neighbours' garden
  12. David's hair
  13. OK
  14. my best friend's party
  15. OK
  16. Ben's parents' car
  17. OK
  18. OK