11. We have written a letter 12. Pablo has 13. Lorena and his son have 14. Lindsay 15. I haven't gone to Costa Rica 16. Have you 17. I haven't seen you 18. They have worked at INA 19. Jose has studied at UCR 20. Victor's run

Ответ:

11. We have written a letter yet

12. Pablo has just cut a piece of paper.

13. Lorena and his son have already talked to me.

14. Lindsay still hasn't come to the party.

15. I haven't gone to Costa Rica ever.

16. Have you ever cooked lasagna?

17. I haven't seen you lately 2009.

18. They have worked at INA for 3 months.

19. Jose has studied at UCR for five year.

20. Victor's run since he was a child.