Steve: Hello, Mrs Brown. 1) Is Mark here?
Mrs Brown: Yes, he's in his room.
Steve: Thanks. Hi, Mark!
2) Whose is this guitar?
Mark: Hi, Steve. Yes, it's really big.
Steve: You've got a TV, a DVD player and a computer. 3) Your room is great!
Mark: It's my brother's
Steve: 4)You're very lucky. You've got everything in your room!
Вроде бы так, ничего обещать не могу.