Correspondencia ortográfica

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Across
  1. 2. stress
  2. 5. difference
  3. 7. cathedral
  4. 9. physics
  5. 10. aggressive
  6. 11. common
  7. 13. immediately
  8. 16. appearance
  9. 17. professor
  10. 18. myth
  11. 19. mystery
Down
  1. 1. special
  2. 3. battery
  3. 4. chemistry
  4. 6. communication
  5. 8. illusion
  6. 10. analysis
  7. 12. mechanic
  8. 14. telephone
  9. 15. pharmacy