Crossword study

12345678910111213141516171819
Across
  1. 4. needing air
  2. 7. being mad
  3. 11. crowd around
  4. 12. lacking courage
  5. 13. to change shape
  6. 14. energetic part
  7. 15. feel a great dislike
  8. 16. relating to cities
  9. 17. clear/understandable
  10. 18. cut/tear
  11. 19. rapid sweep
Down
  1. 1. process of convincing
  2. 2. long narrow passage
  3. 3. to obstruct
  4. 5. future generations
  5. 6. long passage
  6. 8. sensible/wise
  7. 9. act of watching
  8. 10. endurance
  9. 13. to discover