Write in plural. 1. an apple 2. a bird 3. a cake 4. a desks 5. a garlic 6. a grasses 7. a family 8. a a zoo 9. a tree 10. a sky 11. an atlases 12. a supermans 13. a mouse 14. a city 15. a photos 16. a thief 17. a window 18. a tower 19. a postman 20. a tomato 21. a book a glass a box a chair an eraser a hero a house a snakes a knife a floor a zebra a fly a woman a souvenirs a roof a villas a sofa a goose an ox a dragonfly a radio a wife