Dearfriend,
I'veheardthatyourlegswerebrokenlastweek.Howareyoufeelingnow?Areyoubetternow?Youdon'tworryaboutthelessonswhichyouleftbehind.I'llteachyouallthelessonsassoonasyouarebetter.Soyoushouldstayinhospitalwellandrestmore.Intheseways,yourillnesswillgetbettersoon.Youshouldobeythedoctors'wordsanddomoreexercise.
Ihopeyou'llgetbettersoon.
Yourssincerely,
Tommy.(此处写你的名字,可随便写)