unit 6 puzzle

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Across
  1. 3. make sb behave in a more polite way
  2. 7. a creature that is ugly and frighening
  3. 8. a person who studies the nature and meaning of existence, reality, moral,etc.
  4. 10. paid work
  5. 11. opposite
  6. 12. strange
  7. 14. shake slightly
  8. 15. happening or existing without stopping
Down
  1. 1. extremely bad or evil
  2. 2. realize or notive sth
  3. 4. happening by itself without being planned
  4. 5. complete one's studies and receives a certificate or diploma
  5. 6. general principles or ideas of a subject
  6. 9. a person who studies economics
  7. 13. a way from one place to another