1. He finished his exercise on time. => His exercise 2. The manager must sign the cheque. => The cheque 3. They have postponed the concert. => The concert 4. My father bought me a video recorder. => A video recorder 5. The police didnt interview the witness. => The witness 6. They have built a new hospital near the airport. => A new hospital 7. They should grow the flowers in this garden. => The flowers 8. They will build a new bridge in this area. => A new bridge 9. People are going to build a new hospital in my hometown. => A new hospital 10. Nobody has used this room for many years. => This room 11. John used to visit Mr Cole at weekends. => Mr Cole 12. Nobody has watered the trees since last Friday. => The trees 13. My father has planted some young trees in the back garden. => Some young trees 14. Her husband offered her a bunch of flowers on her birthday. => A bunch of flowers 15. People have domesticated cats for thousands of year. => Cats Help =))