Поставьте следующие существительные во множественное число (множественным числом неопределенный артикль нужно опустить) A pen, the class, a story, the road, a day, the cat, a bush, the desk, a table, the plate, a fox, the room, a lady, the knife, a chair, the bus, a hero, the match, a way, the house, a family, the town, a foot, the child, a play, a key, the woman, the wolf, a swine, the mouse.
pens, classes, stories, roads, days, cats, bushes, desks, tables, plates, foxes, rooms, ladies, knives, chairs, buses, heroes, matches, ways, houses, families, towns, feet, children, plays, keys, women, wolves, swine, mice.