Dear Mom and Dad,

My friend,LiLei,called me to his home to prepar for tomorrowparty,and Id love to go.So Icant have supper with you.Please dont worry.I will return as soon as possible.

your sweety

Lily

亲爱的爸爸妈妈：

我的朋友李雷叫我去他家为明天的聚会做准备，并且我很乐意去。所以，我不能和你们吃晚饭了，不要担心。我会尽快回来。

你们的宝贝儿

莉莉