完形填空OnedaywhenIwasfiveyearsold,mymotherwaswashingthekitchenfloor.Iwastellingheraboutanewgirlatschool,andshelookedupatmeandsaid,“__1___areyourtwobestfriends?”Iwasnot__2___whattosay,“Um---JennyandMary.”Mymother__3___washingthefloorandaskedme,“Well,whataboutKateandCindy?”“Butthey’remy__4___.”“Yes,buttheycan__5___beyourbestfriends.Friendsmaycomeand__6___,butyoursisterswillalwaysbethereforyou.”AtthattimeIfelt__7___.Howcouldmytwosistersbemyclosestfriends?Wefoughtallthetimeovertoys,food,andwhatto__8___onTV.Howcouldmysistersbemybestfriends?Theyweren’teventhesameageasme.Weallhadourown___9__atschool.Butmymotherneverletus_10___thatsistersarelifelongfriends.Likeallmothers,shewantedtogiveusagreatgift___11__letusknowhowluckywewere.Sheletusplaytogetherandalwayspunishedusinthesameway,too.Wedidn’talways__12___wellandfoughtjustlikeanyothersisters.Nowtwentyyearshave__13___.Werealisethatourmotheris__14___.TodayIsharethingswithmysistersthatIdon’t___15__withanyoneelse.