Dear Wanglei,
I am writing now to tell you that you should not have been upset about the housework that your parents let you do.In fact,doing housework,just like taking physical exercise,can make our hands and feet more flexible; besides,helping parents do some housework can make them have much more time to relax themselves; last but not least,it can help us learn some basic life skills,and those life skills will be very useful when we are alone.
I am looking forward to your early reply.
Yours sincerely
Joe