Упражнение № 1 Напишите множественное число следующих существительных: Boy, suit, school, glass, dress, scarf, child, nose, city, table, girl, garden, kitchen, wolf, cat, fly, fox, woman.
Упражнение №2 Напишите множественное число существительных: Puppy, dog, cake, man, clock, watch, shelf, child, foot, driver, story, mouse, work, postman, lady, fox, bench, leaf.
Упражнение № 3 Напишите единственное число следующих существительных: Knives, mice, cities, faces, geese, matches, buses, children, oxen, datum, wives, flies, men, heroes, ladies, toys, teeth, toes, physics, villages.

1. Boys, suits, schools, glasses, dresses, scarves/scarfs, children, noses, cities, tables, girls, gardens, kitchens, wolves, cats, flies, foxes, women. 2.Puppies, dogs, cakes, men, clocks, watches, shelves, children, feet, drivers, stories, mice, works, postmen, ladies, foxes, benches, leaves.3.Knife, mouse, city, face, goose, match, bus, child, ox, date, wife, fly, man, hero, lady, toy, tooth, toe, physic, village.