我帮你修改一下，你看看到底是哪里出问题了
Dear Peter
I will hold a dinner party at my house on July 1st 2011 to allow all of our friends enjoy a happy get-together before the graduation and leaving from each other. As you are our closed freind , we would like to invite you to join us and share with us the good recollection.
The party will start at 7:00pm . Everybody will share his experiences to others , and a dinner party will be followed with abundant and various arrangement including songs presented by Mary ,and perhaps accompanied by John .
I am looking forward to your kind reply , and all of us will be delighted if you could make a performance.
你的语法错误：字母大写、定语从句使用，时间状语从句使用等。
we would like you to anticipate in farewell and share the recollection very much .好像是这样的，其他的应该没问题
at my house -----at my home
leaving of each------leave of each
the occasion will start ---The dinner party will start
the singing of mary --------by mary
witch--which
with the telling of --telling
very much like 肯定有错误，但我不知怎么改才好
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