Unit 2, the sky's the limit

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Across
  1. 2. hopefully the Swiss footballteam can ... for the WM
  2. 3. what you think about something
  3. 7. someone who designs buildings
  4. 8. invention
  5. 12. a very hard stone
  6. 13. from botton to top
  7. 15. to have the same opinion like somebody
  8. 16. a very tall building
  9. 17. to move somewhere and stay there
  10. 18. to be of another opinion
  11. 20. line between two countries
  12. 21. a hard metal
Down
  1. 1. what you need to construct a house
  2. 4. 50 km/h is the speed... in towns
  3. 5. when you don't have enough of something
  4. 6. really not beautiful
  5. 9. to construct bridges and buildings
  6. 10. from the inside to the outside
  7. 11. room for someone or something
  8. 14. to run a marathon is a real ...
  9. 19. positively astonished