kies uit: I, you, he, she, my, your, his of her

Hello, 'm Sarah. play a lot with computer. have had it for a year now.
brother Dan doesn't have a computer.
He's terribly jealous, but 's still too young and room is too small.
Have got a computer?
Or is room too small.
sister Ann has a noisy hobby: loves playing the drums.
Can imageine what a terrible noise it makes?
practises in her room, but we can haer the noise in the living-room.
brother thinks it isn't fair: doesn't have anything, only lousy bike.
What do think? Is it right?