Помогите упражнение 6. Очень срочно. Поставлю лучший ответ.

The violin belongs to Fred. It's Fred's.
The guitar belongs ti him. It's his.
The piano belongs to Mrs. Green. It's Mrs. Green's.
The painting belongs to my granny. It's my granny's.
The sculpture belongs to Roger. It's Roger's.
The flute belongs to her. It's hers.
The cups belong to us. They're ours.