Critical nouns

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Across
  1. 2. "smoking kills"
  2. 6. "Include a brief summary of the paper's main points"
  3. 8. "police caught somebody but they need to check cameras if it was him"
  4. 9. "in is to out as up is to down"
  5. 12. "money can't by happiness"
  6. 14. "when seeds combine with water"
  7. 16. "third person"
  8. 17. "i crept into the room quit as a mouse"
  9. 19. "its how you said it"
Down
  1. 1. "Start building the twin towers"
  2. 3. "she sells sea shells by the sea shore"
  3. 4. "they both like dogs"
  4. 5. "you are a guest"
  5. 7. "glazed with rain water"
  6. 10. "all professional basketball players are tall"
  7. 11. "My dog is a american bully white on the chest and gray all over with brown eyes"
  8. 13. "my dog has a heart of gold"
  9. 15. "courage"
  10. 18. "My friend feels sad"