Question

1)Поставить во множественном числе.
House, mouse, potato, piano, hish, baby, valley, knife,thief, foot, cliff, woman, tooth, child, box, ox, sheep.
2)Образовать единственное число.
Heroes, kisses, ffies, donkeys, loaves, feet, deer, men-of-war, sisters-in-iaw.

Answer 1

Houses, mice, potatoes, pianos, fish, babies, valleys, knives,thieves, feet, cliffs, women, teeth, children, boxes, oxen, sheep.
Hero, kiss, fly, donkey, loaf, foot, deer, man-of-war, sister-in-law.