请问几道gwd语法，谢谢～

１.　Minivans carry as many as 7 passengers and,compared with most  sport utility vehicles,cost less,get better gas mileage,allow passengers to get in and out more easily ,and have a smoother ride.

Minivans,carrying as many as 7 passengers ,compared with most  sport utility vehicles,cost less,get better gas mileage,allow passengers to get in and out more easily ,and have a smoother ride.

ＧＷＤ正确答案是第一个，但是第一个７passengers and中的ＡＮＤ感觉是不是重复，因为本来似乎应该是Ａ，插入语，Ｂ，Ｃ，and　Ｄ的结构，现在是Ａ　and，插入语，Ｂ，Ｃ，and　Ｄ．而且第一个并列成分中是ＡＳ....ＡＳ...，后面是比较级的并列，这样的并列是不是不工整？？？另外，第二个哪里错了？？

应该尽量避免连个分词短语象本题这样的连用方式。因为，很容易歧义，比如本题，compared with most  sport utility vehicles 是什么成份？肯定有歧义，因为，其可以做状语，也可以是定语修饰passengers， 如果将compared with most  sport utility vehicles  移到句首，则第二个答案还是可能对的。　

２.The supreme being was Esaugete Emissee,who dwelt in an upper realm in which the sky was the floor,and who had the power to give and to take away the breath of life.　

The supreme being was Esaugete Emissee,who dwelt in an upper realm where the sky was the floor,having the power to give and to take away the breath of life.　

感觉第二句中的where　比 in which　要好，第一句似乎更顺，但是不知道第二句哪里错了？

in which没有问题。第二个having有问题。

３.A leading figure in the Scottish enlightenment,Adam Smith wrote 2 major books that are to democratic captalism what MAX's Das capital is to socialism.

A leading figure in the Scottish enlightenment,Adam Smith wrote 2 major books that are to democratic captalism similiar to MAX's Das capital is to socialism.

感觉后一句似乎表达更清楚，而前一句中的ＷＨＡＴ用法不太清楚，指代的什么？？ＧＷＤ正确大案是前一个．

what 地用法与大全的此题类似。

谢谢～～