DearMs.Riddle，
IwouldliketoknowifIcouldaskforacasualleaveofabsencefromyourOralEnglishclassthisWednesdaymorning.
YesterdayeveningIgotaphonecallfrommycousin,whoisnowrunningasmallfirminsuburbsofthiscity.Heneedsaninterpreterfortwodaysbutcannotfindthemostreliableperson,sohewantsmetohaveatry.Personally,IregardthisasagoldenopportunitytoputwhatIhavelearnedinyourclassintopractice,butIneedyourpermissionofabsence.IfyouthinkImaygoandhelphimgetoverthedifficulty,IamconfidentthatI’lldoagoodjobandbothofuswillbegrateful.
Thanks.Yourkindpermissionwillbegreatlyappreciated.
Earnestlyyours，
LiHua