Образуй множественное число существительных.

a dog – dogs; a fox – foxes; a raccoon – raccoons; an arrow – arrows; a boy – boys; a sister – sisters; an animal – animals; a goose – geese; a horse – horses; a mouse – mice; a wolf – wolves; a river – rivers; a hen – hens; a cat – cats; a bear – bears; a game – games.