英语作文,帮我看看这是作文中的一段话,帮我稍微改改,有什么语法问题请指出,作文是关于邀请信的,
we hold this party.For one thing,that day is the birthday of our tutor and we will invite him also at that time ;for another thing,we would like to get together ,before the graduation and leaving of each.
还有这段话开始的we hold this party怎么融入到整个句子