I before E except after C

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Across
  1. 4. thinking one is better than others
  2. 7. the act of taking a delivery
  3. 8. how Santa delivers gifts
  4. 9. a broad piece of armor
  5. 16. to recognize or become aware of
  6. 17. to have faith in
  7. 18. the grade you are in
  8. 19. a queen does this over her kingdom
  9. 20. a state of sorrow or sad
Down
  1. 1. to put a hole in an object
  2. 2. naughty, not doing the right thing
  3. 3. person who lives in the next house
  4. 5. a slice of pie
  5. 6. something accomplished
  6. 10. strange, not like others
  7. 11. Mr. Ford and Mr. Mc teach this class
  8. 12. slip of paper after you shop
  9. 13. animal that pulls Santa's sleigh
  10. 14. look up and you will see this
  11. 15. to relax