英语作文便条：

假设在周末Sarah在睡懒觉，爸爸没有打扰她，在桌上留了张便条便出去了，请您根据下面提示补全便条上的内容。下面的内容是Sarah去买菜，在家打扫房间，练习钢琴，在网上查资料。

开头部分是Dear Sarah I,m coming back at twele o,clock.I need you help.

Dear Sarah
I,m coming back at twele o,clock.I need you help.
Go to nearist supermarket to buy sone food for your breakfirst.After that, remember to clean the room.
Oh,don't forget to practice playing the piaon.you can surf the Internet to search informaion brefore I come back.