标题: 求问一道prep 08关于独立主格，或者句尾逗号+doing的问题 [打印本页] 作者: frank940320 时间: 2017-10-4 09:53 标题: 求问一道prep 08关于独立主格，或者句尾逗号+doing的问题 [size=11.000000pt]The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both dating back at leasta thousand years.
both dating
both of which have dated
and each has dated
and each one dating
each one of which date
[size=14.6667px]请教NN们，A 中的both dating 做什么成分呢？看语法笔记说是做独立主格修饰communties。 为什么不能把，dating 看成doing在句尾做伴随或者结果呢？是因为主句是主系表结构么