Употребите притяжательный падеж вместо словосочетания с предлогом of 1. the brother of this boy 2. the parents of John употребите во множественном числе : a calony, a sister, a wolf, a wall, an eye, a states man, a schoolchild, a mouse, a woman, a box, a house, a toorh, a story

1. This boys brother
2. Johns parents.
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calonies, journeys, sisters, wolves, walls, eyes, states-men, schoolchildren, mice, women, boxes, houses, teeth, stories.