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求助GWD6-7关于完成时

Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve metropolitan Boston.

 

 

  1. Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve

  2. Concerns about public health have led to the construction of three separate sewer systems between 1876 and 1904 to serve
  3. Concerns about public health have led between 1876 and 1904 to the construction of three separate sewer systems for serving
  4. There were concerns about public health leading to the construction between 1876 and 1904 of three separate sewer systems serving
  5. There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving   between不是表示一个时间段,为什么不选C用完成时呢?
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between 1876 and 1904的位置不对,意思有变。

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