4 tips+2 languages

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Across
  1. 2. willing,having a passion, excited
  2. 4. having smth around
  3. 6. spend time thinking about a possibility or making a decision
  4. 9. kindergarten
  5. 13. hint, clue
  6. 15. the conditions that you live or work in
  7. 16. interesting, exciting
  8. 18. turn up
  9. 19. sad, difficult
  10. 20. friendly, nice
Down
  1. 1. person who governs a town or city
  2. 3. having little importance, influence, or effect
  3. 4. make more interesting
  4. 5. condition or situation that causes problems
  5. 7. language
  6. 8. look,image
  7. 10. swap, change
  8. 11. turn down
  9. 12. putting money, effort, time, etc. into something
  10. 13. fondness, interest
  11. 14. something that is similar to or combines well with something else:
  12. 17. more important, bigger, or more serious