Dialogue anglais

Bonjour! Voilà j'ai un dialogue a faire en anglais, est ce que je vous pouvez, s'il vous plait me corriger mes erreurs .. je pense qu'il y en a pas mal .. !
MErci!

Ben- Mom, I have something to ask you.
Janna- Yes I listen Ben
Ben- is it possible for my birthday, Can I have a computer in my room?
janna- No!
Ben- But Mom, I'll be 15 year old
Janna- I know. You know why
Ben- Why ?
Janna- you'll spend all your time on it
Ben- promised but not
Janna- I know very well these promises. It's going to stop you from working, you're not going to do your homework, you will bring back bad marks, you'll enjoy more of your friends, you get out! And it's not your age!
Ben - Oh yes, and why?
Janna- You might log on to pornographic, violent, racist, game sites ling!
Ben - Mom, I'm cautious.
Janna- You do not realize the danger.
Ben- But all the boys have a computer in their room themselves! Their parents trust in them.
Janna- But I trust in you, but it is full of danger on the Internet. All disappearances, murders ...
Ben- You can always activate parental control!
Janna- (Ca ne sert à rien ça!) And then you'll become hooked, I will see more of the day, you stay all day on it. The computer is very good in the dining room. So I can watch you when you go there.
Ben - I can never go there! You set a password, I do not know! And you're never over.
Janna-I go from time to time. I'm not addicted. To me and my racing.
Ben-I do not ever see you back! We can at least ensure that I can spend more time on, and when I want ... if you like mom.
Janna-Bon ok, but I do not want more than two hours a day, and brings you good grades you get a bonus.
Ben-Thanks Mom! You're brilliant! But ...
Janna-yes?
Ben-When Will I be able to have my computer?
Janna GLASS-ON YOUR 18th birthday!
Ben-ok ...