5、becausesecondoneisrathertoosmall.A. a;a B. the;the C. a;theD. the;a3.Someoftheexercisesappeartobe________onesthatyouhavedone,butaftertaking________secondlook,youwillfindthattheyaredifferent.A./;theB.the;theC.the;aD./;a规律总结:序数词前加不定冠词,表示再一,又一,相当于another,不表顺序1.Oh,John.________yougaveus!