邀请朋友参加一个party.写成书信的形式如下.
dear,**
I am having a party for my birthday. It will be in my house on friday night.
I want you to come. you don't have to bring anything.
Are you free that day? Can you make it? You gonna to be there because/for you are my best friend. It will not be the same without you . i am looking forward to see you.
best wishes,
your sincerely **
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