DearMr.Smith,
IamindeedverysorrythatImissedtheexaminationonInternationalBusinessEnglishWritingyougavelastFriday.Ifeelawfulaboutitandwantyoutoknowwhathappenedthatday.
Isuddenlyfellsickearlythatmorningandmyparentshadtosendmetothehospital.Pleasefindenclosedacopyofthemedicalbill.
Isincerelyhopeyoucanunderstandmysituationandacceptmyapology.Iwouldappreciateyourallowingmetotakeamake-upexamination.IwillcometoyourofficeduringyourofficehouronMondaytodiscussthispossibilitywithyou.
Onceagain,Iapologizeforanyinconveniencecaused.
Sincerelyyours,
xx