unit 6 puzzle

12345678910111213141516
Across
  1. 3. extremely bad or evil
  2. 5. a person who studies the nature and meaning of existence, reality, moral,etc.
  3. 8. waste rubbish
  4. 9. happening or existing without stopping
  5. 10. a person who studies economics
  6. 13. paid work
  7. 15. realize or notive sth
  8. 16. a creature that is ugly and frighening
Down
  1. 1. make sb behave in a more polite way
  2. 2. complete one's studies and receives a certificate or diploma
  3. 4. strange
  4. 6. happening by itself without being planned
  5. 7. a way from one place to another
  6. 11. opposite
  7. 12. general principles or ideas of a subject
  8. 14. shake slightly