Question

Проверьте письмо на наличие ошибок и исправьте там где они есть и поясните ошибку.Дам 20 баллов

Dear Dasha,
Thank you for your interesting letter.I also want to tell you about my sister.My sister's name is Vika.She's twelve years old.She goes to school number five.
Her brown hair,and green eyes.She's tall and thin.Likes to walk on the street.It's always very fun.But she is not my mother tongue,and cousin.
Best wishes
Dasha.

Answer 1

Вместо My sister's name лучше написать her name.
Вместо Her brown hair,and green eyes надо написать She has brown hair and green eyes.
К Likes to добавь Vika likes to. 
В основном все хорошо!