北京研拓大孝现代远程教育 l.Cultural background(文化背景) Information required for the party invitation: 写活动邀请函必备信息： Who:who is hosting the event and who is being invited 说明活动举办人和被邀请的人。 Where:where the event is being held 说明活动地点 Why:the reason for the celebration 说明活动的原因 When:the date and the time of the event 说明活动的日期和具体时间 3I. Cultural background (文化背景) Information required for the party invitation: 写活动邀请函必备信息： Who: who is hosting the event and who is being invited 说明活动举办人和被邀请的人。 Where: where the event is being held 说明活动地点 Why: the reason for the celebration 说明活动的原因 When: the date and the time of the event 说明活动的日期和具体时间