【導讀】10.______hurry,_______speed.2.Gold(黃金)is_________(little)usefulthaniron(鐵).child.as…,expensive). Fred.is_________(heavy),ahenorachicken?15.--How_________(tall)isSally?--She'smetres_________(tall).WhatabodtXiaoling?intheclass._________(small)thananelephant.