B2 Word Transformation

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Across
  1. 1. adjective of nature
  2. 4. noun of choose
  3. 6. adjective of crowd
  4. 8. noun of combine
  5. 11. adjective of mystery
  6. 13. noun form of know
  7. 16. adjective of remark
  8. 17. negative adverb of intention
  9. 19. noun of intend
  10. 20. adjective of memory
Down
  1. 2. adjective of adventure
  2. 3. noun of lose
  3. 5. negative adverb of convenient
  4. 7. adjective of risk
  5. 9. adjective of marvel
  6. 10. adjective of friend
  7. 12. adverb of comfort
  8. 14. adverb of enthusiastic
  9. 15. negative noun of behave
  10. 18. adverb of increase