Упр. 2. Напишите следующие слова a) во множественном числе:
a house, a mouse, a potato, a piano, a dish, a baby, a valley, a knife, a roof, a woman, a tooth, a child, a box, a brother-in-law, a boy, a toothbrush, a workman, a classroom, an armchair, a matchbox, a bookshop, a woman-teacher, a secretary, a nurse, a stepmother, a wife, a grown-up, a formula;
b) в единственном числе:
feet, sheep, teeth, boxes, libraries, babies, needs, theses, data, heroes, kisses, families, sisters-in-law, watches, actresses, saleswomen, boyfriends.
а) houses,mouses,potatoes, pianos, dishes,babies, valleys, knives, roofs, women, teeth, children, boxes, brothers-in-law, boys, toothbrushes, workmen, classrooms, armchairs, matchboxes, bookshops, woman-teachers,secretaries ,nurses, stepmothers,wives, formulas.
b) foot, sheep, tooth, box,library, baby, need, these, data, hero, kiss, family, sister-in-law, watch, actress, saleswoman, boyfriend