2. 2 babies 3 children 4 green leaves 5 old ladies 6 radios 7 oxen 8 tall women 9 knites 10 toys11 policemen 12 raspberries 13 sandwiches 14 mice15 photos16 cliffs17 pens18 watches19 big feet20 nice books3.2 ostriches 3 parrots4 swans 5 turkeys 6 dolphins 7 giraffes 8 deer9 calves 10 foxes11 mice12 hippos 4.- s: houses, apples, balls, radios, cliffs giraffes, parrots, boys, melons, armchairs. -es: buses, glasses, boxes, tomatoes, dresses, torches, foxes, watches, dishes.-ies: cherries, babies, ferries, cities, ladies. -ves: knives, leaves, wives, calves, wolves. Irregular : men, children, teeth, geese, oxen, women, sheep.