Образуйте множественное число следующих существительных.
1) radio, lesson, court, thief, potato, house, eye, fish, tooth-brush, rose, story, truth, key, mouse
2) child, path, hero, day, book-case, oak, manner, louse, study, goose, wolf, yard, brush, sofa
3) man, horse, idea, kilo, tooth, brother, cousin, glass, daisy, ox, swine, grass, lion, writing-table
4) son-in-law, youth, piano, half, dream, foot, deer, child, material, mouse, servant, potato, cow-boy
5) woman, hoof, branch, mosquito, ox, frog, mouth, hill, root, photo, foot, country, joint, noun

1) radios, lessons, courts, thieves, potatoes, houses, eyes, fish, toothbrushes, roses, stories, truths, keys, mice.

2) children, paths, heroes, days, book-cases, oaks, manners, lice, studies, geese, wolves, yards, brushes, sofas.

3) men, horses, ideas, kilos, teeth, brothers, cousins, glasses, daisies, oxen, swine, grass, lions, writing-tables.

4) sons-in-law, youths, pianos, halves, dreams, feet, deer, children, materials, mice, servants, potatoes, cowboys.

5) women, hooves, branches, mosquitoes, oxen, frogs, mouths, hills, roots, photos, feet, countries, joints, nouns.