Q17:
Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve metropolitan Boston.

• Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve
• Concerns about public health have led to the construction of three separate sewer systems between 1876 and 1904 to serve
• Concerns about public health have led between 1876 and 1904 to the construction of three separate sewer systems for serving
• There were concerns about public health leading to the construction between 1876 and 1904 of three separate sewer systems serving
• There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving

答案是A，我选了B，这题是有争议的，但为什么说用现在完成时绝对错？

Present perfect 的意义是一个动作从过去开始，一直到现在还在进行。因为这里说的是 1876 到 1904 之间的事情，早已经过去了，所以不能用 present perfect tense，只能用 simple past tense。

谢谢！好像这个问题真的很弱...高中语法都忘掉了...

请问如果用过去完成时可以吗？

Past perfect tense 就是过去的过去。例如：
When Myrtle came back home, she discovered that her cats had clawed the roll of toilet paper in ten thousand little pieces.

此题还涉及到 between 1876 and 1904 的修饰问题， between 1876 and 1904 应该修饰construction，所以A对

Between 1876 and 1904 是时间定语，位置不那么确定的。其实 construction of three separate sewer systems 是一个单位，所以放在 between 1876 and 1904 之前没有什么问题的。我倒觉得 B 那样顺一些，但 A 那样也没有错。

我就是因为这样选了B的。谢谢各位！

明白了，主要还是看动词。。。。