请给这封英语信中的语法问题改错.
写给老师的
想让学校提前一天开宿舍让我们住
IamA.B,CandIarenewacceptedstudentsforFallandwehavebookedourflightstoDairportonAughust,20th(Chinatimezone).Owingtotheagerequirementofcheck-inis21yearsold.Therefore,wearenotabletostayathoteluntilAugust,21th.EtoldushewillrentacarandtakeustoschoolonAugust,20th.Allofuswouldliketogowithher.Sotheschoolshouldnottotakeacartopickus.CouldschoolopenthedormitoriesforusonAugust,20th?