1、(Open) the window .把窗户打开.2、There are some pencils in the pencil-case.(改为单数） There is a pencil in the pencil-case.在铅笔盒里有支铅笔.3、There are eighteen rooms in the building .(对划线部...China's largest island is ______A.Hainan Island. B.Chongming Island .C.Taiwan Island.D.Zhoushan Island.China's largest island is （C.Taiwan Island）.中国最大的岛屿是台湾岛。Three chinese traditional sports first appeared at Guangzhou Asian games .They are _______-.A.chess,weiqi and xiangqiB.weiqi,xiangqi and dragon boatC.wushu,xiangqi andThree Chinese traditional sports first appeared at Guangzhou Asian games .They are （B）.广州亚运会首次出现的三项中国传统竞技是围棋、象棋和龙舟。