标题: GWD的一道争议题 [打印本页] 作者: lllmmm 时间: 2010-11-25 23:53 标题: GWD的一道争议题 metropolitan Boston. A. Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve B. Concerns about public health have led to the construction of three separate sewer systems between 1876 and 1904 to serve C. Concerns about public health have led between 1876 and 1904 to the construction of three separate sewer systems for serving D. There were concerns about public health leading to the construction between 1876 and 1904 of three separate sewer systems serving E. There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving作者: sdcar2010 时间: 2010-11-26 02:33
A. Concerns led to the construction of three systems to serve . . .作者: aeoluseros 时间: 2010-11-26 13:33
这个不是争议题了，prep里面给出了官方答案A作者: lllmmm 时间: 2010-11-26 14:45
那D选项为什么不对呢作者: sdcar2010 时间: 2010-11-26 20:44
那D选项为什么不对呢
-- by 会员 lllmmm (2010/11/26 14:45:50)
Where is the verb?作者: lllmmm 时间: 2010-11-27 23:00
were就是谓语啊