标题: 请教OG 12th Edition 语法 SC第19题 [打印本页] 作者: 特强薄荷 时间: 2010-8-22 00:14 标题: 请教OG 12th Edition 语法 SC第19题 The Iroquois were primarily planter, but supplementing their cultivation of maize,suqash,and beans with fishing and hunting. A.but supplementing B.and had supplemented C.and even though they supplemented D.although they supplemented E.but with supplementing