Образуйте множественное число от следующих существительных:
A town, a fox, a hero, a child, a key, a roof, a watch, a piano, a handkerchief, a city, a dish, a woman, a Frenchman, a foot, a deer, a glass, a tree, a toy, a tragedy, a shelf., information, a goose, a leaf, an egg, a window, a tomato, advice, a pen, a park, phenomenon.