Singular and plural nouns

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Across
  1. 2. rings
  2. 3. babies
  3. 4. dishes
  4. 8. sheep
  5. 9. box
  6. 10. cats
  7. 12. fish
  8. 14. women
  9. 16. potatoes
  10. 18. mice
  11. 19. rivers
  12. 21. sandwiches
Down
  1. 1. cities
  2. 3. buses
  3. 4. dresses
  4. 5. houses
  5. 6. beaches
  6. 7. teeth
  7. 11. tomatoes
  8. 12. feet
  9. 13. cats
  10. 14. wives
  11. 15. people
  12. 17. brushes
  13. 20. children