French puzzle

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Across
  1. 6. to improve
  2. 7. to protect
  3. 9. pollutants
  4. 13. to get up
  5. 17. ampule
  6. 18. homework
  7. 19. issue
  8. 20. to go for a walk
Down
  1. 1. spoil
  2. 2. to shave
  3. 3. to be
  4. 4. wind turbines
  5. 5. unlimited
  6. 8. to wake up
  7. 10. to buy
  8. 11. to borrow
  9. 12. to be able to
  10. 13. to wash
  11. 14. to get dressed
  12. 15. to menace
  13. 16. to damage