商务礼仪中有一项就是活动邀请函。在不断进步的.时代，需要使用邀请函的场合越来越多，那么邀请函的格式，你掌握了吗下面是小编为大家整理的英语过生日邀请函，欢迎阅读与收藏。
Dear lucy，
Next monday is my 20th birthday. imagine, there are already twenty years behind me! no wonder i feel old!
My parents are giving a dinner party to mark the party. the first person they wish to invite is you, my childhood pal. indeed, all of those 20 years are more or less associated with you.
We'll be expecting you any time after six. see you then.
Yours，
xxx