邀请信（英文）假设你的生日快到了,请写封信给你的笔友邀请她来参加你的生日Party

Dear Mary,
How are you?Next Saturday will be my birthday and I am going to hold a birthday party at my home.I will be inviting a lot of friends and I want you to come to my birthday party too.Please reply to me and let me know if you can come.
Hope to see you soon!