GWD 8-23, 13-28

A New York City ordinance of 1897 regulated the use of bicycles, mandated a maximum speed of eight miles an hour, required of cyclists to keep feet on pedals and hands on handlebars at all times, and it granted pedestrians right-of-way.

1. regulated the use of bicycles, mandated a maximum speed of eight miles an hour, required of cyclists to keep feet on pedals and hands on handlebars at all times, and it granted

2. regulated the use of bicycles, mandated a maximum speed of eight miles an hour, required cyclists to keep feet on pedals and hands on handlebars at all times, granting

3. regulating the use of bicycles mandated a maximum speed of eight miles an hour, required cyclists that they keep feet on pedals and hands on handlebars at all times, and it granted

4. regulating the use of bicycles, mandating a maximum speed of eight miles an hour, requiring of cyclists that they keep feet on pedals and hands on handlebars at all times, and granted

5. regulating the use of bicycles mandated a maximum speed of eight miles an hour, required cyclists to keep feet on pedals and hands on handlebars at all times, and granted

我手上答案的版本是B，为什么E不对呢？B几个动词并列，应该最后有and啊？

1. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of

2. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on

3. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of

4. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on

5. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of

这个A为什么不对？ found和dated都可以修饰fossils，然后made是主动词。

D老是觉得怪怪的，为什么要用现在完成时呢？

第一题感觉没有正确答案

第二题只能选D，A中的两个分词如果要平行，也是在中心词前一个，后一个。如此并列放在一起不合理。

因为排除A 后根据主语是复数，只能选D，时态不是重点。