请教lzmE8-13,谢谢!

E8-13

Minnesota is  the only one of the contiguous forty-eight states that still has a sizable wolf population,and where this predator remains the archenemy of cattle and sheep.

E: where there is still a sizable population of wolves and where

答案是E,不过我觉得A好象也正确,因为有逗号的存在,可以把后面这个分句看成是与the only one of the contiguous forty-eight states并列,变成Minnesota is where this predator remains the archenemy of cattle and sheep,大家看看能不能这样理解?

另外在E8-3中,存在during sleeping和 during sleep,前者是从句要考虑逻辑主语,而后者是介词短语不用考虑逻辑主语,请问这是为什么?怎么区分从句和介词短语呢?请大家帮助指点,谢谢!

This is the place where......我想这种句法是可以的，不过好像where 前都会有表地点的表语。

但是a sizable wolf population有歧义，

再看 Minnesota is where this predator remains the archenemy of cattle and sheep, 从句子的理解来说，这样的表达意思不连贯 this predator 从意思上应该接着wolf 。

2.不太理解你的问题，分词形式阿，从句的一种省略阿