Spelling Puzzle

1234567891011121314151617181920
Across
  1. 2. In that place
  2. 4. Strange or unusual
  3. 6. Belonging to you
  4. 8. A basic rule or belief
  5. 10. To get something
  6. 11. To receive willingly
  7. 13. Expresses a choice between alternatives
  8. 15. The overhead surface of a room
  9. 16. Not including
  10. 18. Hard to believe
  11. 19. The head of a school
  12. 20. Contraction of "you are"
Down
  1. 1. Able to be changed
  2. 3. Belonging to them
  3. 5. Easy to see or recognize
  4. 7. Having achieved a goal
  5. 9. Impossible to imagine or believe
  6. 12. The condition of the atmosphere
  7. 14. To accept as true
  8. 17. The daughter of your sibling