标题: PREP 232 完成时的疑惑 [打印本页] 作者: guoqi 时间: 2011-8-17 02:45 标题: PREP 232 完成时的疑惑 The Acoma and Hopi are probably the two oldest surviving Pueblo communities, （both dating ）back at least a thousand years. A. both dating B. both of which have dated C. and each has dated D. and each one dating E. each one of which date