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232. (32872-!-item-!-188;#058&006915) (TTGWD4-Q1)
The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both dating back at least a thousand years. A. both dating B. both of which have dated C. and each has dated D. and each one dating E. each one of which date
237. (27484-!-item-!-188;#058&002432) (GWD-8-Q16: GWD-13-15)
Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve 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
OA：E A （刮开有奖）
prep 08 语法笔记解释原文：
*232-B选项：date的现在完成时有潜在含义说“以后都不是追溯到1000年以前了”,要用一般现在时或者分词形式,分词形式的潜在时态与主句一致。
*237-B选项： lead发生在过去,不应该用现在时态(现在完成时),have lead表示了至今依然持续
妹子看见这两个关于现在完成时的解释时，当时就边斯巴达儿边流眼泪了，实在是没文化，语死早
问题：现在完成时，为什么一下子可以表示过去发生的事情持续到现在，接下来还会继续发生，一下子又可以表示，接下来不再持续了？？
其他的语法错误就不麻烦大家再找出来了
此致敬礼。
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发表于 2014-9-30 15:51:30
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