DearSir,
I'msorrytotellyouthatIcan'tgotoschooltoday,I'vecaughtacoldbecauseIswamintheschool'sswimmingpoolyesterday.
ThismorningIhadaheadache.Aftertakingmytemperature,mymotherfoundthatIhadahighfever,immediatelyshetookmetoseeadoctor,whoadvisedmetostayinbedfor2days.NowIamwritingtoyoutoaskfor2days'sickleave.
Withbestwishes
Yourstudent,
Tom