Plurals - What are the plurals?

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Across
  1. 2. kiss
  2. 4. bus
  3. 7. teacher
  4. 10. box
  5. 12. table
  6. 13. child
Down
  1. 1. brush
  2. 2. key
  3. 3. baby
  4. 5. watch
  5. 6. man
  6. 8. woman
  7. 9. city
  8. 11. kid