2. we have cooked for the party for four hours.

3. When did they buy the house ?

4. We haven't decorated the house for years.

5. It's 3 month since i went to the hairdresser.

6. It's the first time i have met such a famous person.

7.They haven't visited me for 5 years.

8. The last time i went to Bristol was 3 years ago.

9. laurence last saw her sister when she left for Japan

10. The last time Lucy wore that dress was in Barbara's wedding.

11. My sister began studying French 2 years ago.

12. It's the first time i have such a mess in my life.

13. It's 4 years since Robert and catherine married.

14. How long have catherine and robert got engaged?

15. it's the dirtiest-looking dog i have ever seen.

16. it's hours and hours since mary rang.

17. Tom has been ill for 3 days.

18. She has left university for 2 years.

19. this is the first time i have tasted such a delicious cake in my life.

20. when did you see mary