Myfirststayathomealonewasmemorable.（此句点明主题,“一次难忘的经历”）WhenIwastwelve,oncebothofmymotherandfatherwereawayonbusiness,andIhadbeenallbymyselffortwodays.（一句话交代父母出差,自己一人在家.）Myparentsleftearlythefirstday,andIgotupsoonaftertheyleft.InthefirsteveningIwasalittlescared,soIturnedonallthelights.Iactuallykeptthelightoninmybedroomthewholenight.Forfearof（以防）gettinguplatethenextmorning,Iputthreealarmclocksnearmybedandsetthealarmsrespectivelyat6:00,6:10,and6:15.InordertoprovethatIcouldtakecareofmyself,Iwashedmyownclothesthesecondafternoon,thoughIcouldwaitforMothertodoit.IreallyfeltproudofmyselfandthoughtIwasabiggirl.