Используйте притяжательный падеж там, где это возможно.
1.The dictionary cover is glossy. 2. This is Liz's video cassette. 3. We heard the plane sound. 4. Our students study the English language's history. 5. The house roof was red. 6. The girls' dresses were pretty. 7. The boy's future depends on his character. 8. The houses price go up & up. 9. I borrowed Dennis' mobile phone. 10. My seat was at the hall end. 11. This theatre is in the city centre. 12. He knows much about Russian history. 13. We need some bread. Let’s go to the backer's. 14. An hour rest will do you good. 15. The yesterday's news was unbelievable.