Dear Lisa,
Hi,how are you?i hope everything going well with you.Today is Sunday,and i am planing to go to shopping with my friends.I am so exicted and have dinner together.But before that,i have to go to the post office to send a letter to my grandparents; it's an invitation from my sister that she has her 20th birthday party at my home next Sunday.I think it will be fine,i will share some pictures with you on that day.
Looking forward your reply.
Best wishes!
***(your name)