unit 6 puzzle

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