DearLee,
ExcusemeformylongdelayinreturningtoyouyourUnderstandingandUsingEnglishGrammarwhichIreadthroughwithgreatinterest.Ihadfinishedreadingthebookandwaabouttoreturnitwhenafriendofminecametoseeme.
Neverhavingseenthebook,hewassointerestedinitthatIhadtoretainitlonger.
However,Ihopethatinviewoftheadditionaldelightthusaffordedbyyourbook,youwilloverlookmynegligenceinnotreturningitsooner.Thankingyoufortheloan.
Yourstruly,
Jim