Сделайте пожалуйста упражнение 9

1. He showed me a letter fo his sister. 2. She took skates of her brother. 3. Give me the notebooks of your pupils. 4. Bring the things of the children. 5. Yesterday the children found a nest of bird. 6. This is the family of my friend. Father of my friend is engineer. 7. Whose bag is this? -This is the bag of Tom. 8. Whose dictionaries are these? - These are the dictionaries of students. 9. Did you see the book of our teacher? 10. I like a handwriting of this boy. 11. I hear the voice of my sister. 12. She opened a window and she listened laughter and cries of the children. 13. She put the wet boots of boys to the stove. 14. This is an armchair of my granny.