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I want to tell about my best friend.Her name is Dasha.She is 17 years old.She has dark wavy hair, her face is oval.She has a turn-up nose and brown eyes.She is quiet and well-bred.Dasha is study at University.She's not married, but she has a boyfriend.Dasha doesn't work.She is fond of reading.We have known each other during eleven years. Previously we often quarreled. But now we have a strong friendship and I hope it will never end.

норм

Ты все правильно написал/написала

1) лучше написать: I want to tell you, либо же I want to give a talk2)просто studies без is3) We have known TO each otherПока все что нашёл.