Поставить во множественное число сущ: a desk, a blouse, a man, a child, a lion, a photo, a potato, a girl, a toy, a lady, a cry, a way, an ox, a shelf, a box, a deer, a boy, a book, a fool, a woman, a mouse, a table, a swine, a sheep, a pen, a pencil, a piano, a clock, a bad, a zoo, a wolf, a fox.