Решение:
- cat - cats
- bus - buses
- baby - babies
- sheep - sheep
- dish - dishes
- book - books
- fish - fish
- lady - ladies
- box - boxes
- pen - pens
- deer - deer
- cherry - cherries
- class - classes
- toy - toys
- species - species
- church - churches
- puppy - puppies
- aircraft - aircraft
- brush - brushes
- story - stories
Ответ: cats; buses; babies; sheep; dishes; books; fish; ladies; boxes; pens; deer; cherries; classes; toys; species; churches; puppies; aircraft; brushes; stories.