Напишите существительное во множественном числе : a hero, a shelf, a

A hero - heroes, a shelf - shelves, a woman - women, a boy - boys, a factory - factories, a child - children, a mouth - mouths, a glass - glasses, a sheep - sheep, a lady - ladies, a brother - brothers, a park - parks, a family - families, a work - works, a pupil - pupils, an egg - eggs, an ice - ices, a box - boxes, a wife - wives, a fox - foxes, a tomato - tomatoes, a fish - fish, a life - lives, a tooth - teeth, a foot - feet, a side - sides, a house - houses.