Distribute the nouns into two groups: singular and plural. House, doll, buses, mice, videos, pen, pencils, men, child, woman, box, foxes, tomato, children, bikes, tree, babies, names, city, nose, roses, mouse, foot, teeth, feet, days, toy, frogs.

Единственное число: house, doll, mouse, video, pen, child, woman, box, tomato, bike, tree, baby, name, city, nose, foot, tooth, day, toy, frog.

Множественное число: buses, mice, videos, pencils, men, foxes, children, bikes, babies, names, roses, teeth, feet, days, frogs.