write the plural for each singular

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Across
  1. 6. passer-by
  2. 10. rainforest
  3. 11. rice
  4. 12. chimney
  5. 14. city
Down
  1. 1. knife
  2. 2. BMW
  3. 3. lady
  4. 4. fungus
  5. 5. photo
  6. 7. enemy
  7. 8. bush
  8. 9. elephant
  9. 13. person