Nowadaystheissueofsecurityoncampusinbeingdiscussedquiteoften.Somestudentshavetheircellphonesstolenindormitories;somesudentsareknockeddowmbythequicklyrunningbikesorcars;othersfightwithandhurtoneanother.

　　Thesephonemenaarecommononcampus.Ithinkthereareseveralreasonsforthese.Firstly,studentsdonotcaretakecareoftheirproperties.Theyarestillyongandnotcarefulenough.Secondly,studentsareveryaggresive.Yestheywanttobethewinnersinexamsandcontest,buttheyalsowanttobewinnersinquarrelsandfightings.Besides,thecampusguardsdonotcarrytheirdutiestotheletter.Theyshouldregulatethetrafficanddirectthetrafficflowsintherushhour.

　　Therefore,inordertohaveasecurycampus,thewholestudentsshouldbeverycarefulabouttheirporpertiesaswelasthemselves.Theyshouldalsomindtheirbehaviorsandactmoderately.Ofcoursethecampusguardsaresupposedtobedovotedtothesecuryoncampusaswell.Theyaretheschool-regulationenforcementagents,soitistheirdutytosafeguardasafeandsecurecampustohelpprovideagoodenvironmentforthestudents.

　　Dearxxx:

　　Itissoniceofyoutoinvitemetoyourhouse.Ithinkitwillbeapreciouschanceformetoknowyourfamily.Yousee,wegetalongwellwitheachotherandlearnfromeachother.Ireallyenjoythefriendshipbetweenus.Yourencouragement,yourgenerosityandyourfranknesshaveleftmedeepimpressionandgivenmeverygoodinfluence.AndmymotherusedtotellmethatIhadhadagraetchangesinceIknewyou.Anyway,IamreallyappreciatetoyourinvitationandIamlookingforwardtobeingwithyouandyourfamily.

　　Yours,XXX