有奖请教一道小升初英语改错题,改错.下面短文中,标有序号的句子中有一处错误,请找出并改正.26.This'sSam'sroom.27,Youcanseesomethingsintheroom.Thereisabedinit.28,Thereiscomputeronthedesk,29.someCDs

　　有奖请教一道小升初英语改错题,

　　改错.下面短文中,标有序号的句子中有一处错误,请找出并改正.

　　26.This'sSam'sroom.27,Youcanseesomethingsintheroom.Thereisabedinit.28,Thereiscomputeronthedesk,29.someCDsarenexttothecomputer.30.Therearetwochairinthisroomandasofaisbetweenthem.

　　26._______27.________28._________29._________30.______