【1.Haveyougot________E-mailaddress?A.theB.anC.theD./2.Areyou_______ChineseorJapanese?A.aB./C.theD.one3.youdropped____"s"intheword"across".Oh,youareright,______letter"s"shouldbedoubledlikethis"across".A.a,aB.an,aC.an,the】

　　1.Haveyougot________E-mailaddress?A.theB.anC.theD./

　　2.Areyou_______ChineseorJapanese?A.aB./C.theD.one

　　3.youdropped____"s"intheword"across".Oh,youareright,______letter"s"shouldbedoubledlikethis"across".A.a,aB.an,aC.an,theDthe,the

　　4.Lookat______window!there's______flyonit.A.the,theB.a,a

　　C.the,aD.a,the

　　5.ThisissongI'vetoldyouabout.Isn'tit_______beautifulone?

　　A.the,theB.a,a,C.the,aD.a,the

　　请简单说明为什么

　　一定要说为什么（很重要）不要乱答