Кто может сделать??
Ex.2 Write the plural of the following nouns:
Piano, shelf, army, potato, wolf, cliff, wife, schoolboy, schoolchild, leaf, life, factory, knife, man, roof, photo, toy, tomato, class, copy, book, note, house, wife, news, paper, land, mother, country, typist, writer, actress, dentist, teacher, mechanic, driver, composer, shop-assistant.