Plural of nouns

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Across
  1. 5. match
  2. 7. party
  3. 10. wife
  4. 11. goose
  5. 12. sheriff
  6. 15. thief
  7. 16. radio
  8. 17. ox
  9. 18. boy
  10. 19. man
Down
  1. 1. bus
  2. 2. potato
  3. 3. cherry
  4. 4. child
  5. 6. mouse
  6. 8. holiday
  7. 9. foot
  8. 13. flower
  9. 14. shelf
  10. 15. tooth