DearSally,

　　i'msorrytohearthatyou'renotfeelingwell,ithinkyoushouldhavearest.You'dbetternotgotoschoolifyouaretootird.Youmayfeelrelaxedifyoulistentoquietmusicorgooutingwithyourfriends.Itmayhelpyoualotjusttohaveatalkwithyourfamily.AsforPutonghua,Ithinkyoushould'tbeshy.Trytotalkasmuchaspossible.Don'tbeafraidofmalingmistakes.LiateningtotheChinsesradioprogramisalsoagoodwaytoimprovePutonghua.Cheerup.You'llbebettersoon.

　　Yours,

　　(xxx)