GWD-13-15 sc求助～～。。。

shineyang

Concerns aboutpublic health led to the construction between 1876 and 1904 of three separatesewer systems to serve metropolitan Boston.
A.    Concerns about public health led to theconstruction between 1876 and 1904 of three separate sewer systems to serve
B.     Concerns about public health have led to theconstruction of three separate sewer systems between 1876 and 1904 to serve
C.    Concerns about public health have led between 1876and 1904 to the construction of three separate sewer systems for serving
D.     There were concernsabout public health leading to the construction between 1876 and 1904 of threeseparate sewer systems serving     (A)
E.      There were concernsleading between 1876 and 1904 to the construction of three separate sewersystems for serving


求教各位大牛～这道题的切入点在哪里？谢谢啦～

colasama

时间明确在过去，不用现在完成时。排除BC
E直接少了东西about public health，排除

剩A/D
D同there be 句型啰嗦，而且改变了句子重心，头轻脚重，排除。

A是答案

shineyang

时间明确在过去，不用现在完成时。排除BC
E直接少了东西about public health，排除

剩A/D
D同there be 句型啰嗦，而且改变了句子重心，头轻脚重，排除。

A是答案

-- by 会员 colasama (2011/6/27 10:53:27)

太谢谢了～解惑了。～