1. December

2. go

3. nursery-garden

4. plant

5. fir

6. nursery

7. verb

8. nursery-garden

9. look

10. fir-three

11. tall

12. slim

13. green

14. bushy

15. go

16. cut

17. Christmas-tree

18. Huray!

19. Christmas

Сразу говорю, на 100% не уверен.