求助! prep 语法题!

liuyanchu61 · 发表于 2011-4-10 21:03:15

求助! prep 语法题!
197.(31514-!-item-!-188;#058&005971)(GWD-8-Q20)

Not only did the systematic clearing of forests in the United States create farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture, but it also caused erosion and very quickly deforested whole regions.

A. Not only did the systematic clearing of forests in the United States
create farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture, but it also
B. Not only did the systematic clearing of forests in the United States
create farmland (especially in the Northeast), which gave consumers relatively inexpensive houses and furniture, but also
C. The systematic clearing of forests in the United States
, creating farmland (especially in the Northeast) and giving consumers relatively inexpensive houses and furniture, but also
D. The systematic clearing of forests in the United States
created farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture, but it also
E. The systematic clearing of forests in the United States
not only created farmland (especially in the Northeast), giving consumers relatively inexpensive houses and furniture, but it

为什么选d 呢？大家帮我解释解释每个选项为什么对（错）吧....非常感谢~~~

求助! prep 语法题!

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