Dear Lora,
I read your letter in the magazine.I know that you want to work part-time this summer.But your parents don't agree with you.
I think your parents may have their reasons.They may regard learning as the most important task for you.Perhaps they'd like you to make use of this summer holiday to study.Besides, they may think you are too young to work.
My advice for you is this:you'd better have a talk with your parents.If they agree, you should make a detailed plan for your study and work,ask your friends to work together with you,and tell your parents not to worry about you because you are old enough to manage things properly.
Anyway,I wish you a pleasant summer.
Yours truly,
Li Hua