unit 6 puzzle

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