涛涛GWD31－06－16

Q16:

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.

1. 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
2. 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
3. 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
4. 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
5. 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

   Answer: B

我认为是D，因为also后面的内容与主句明显不是递进或并列，而应该是转折。而且这里不应该用not only... but also的句型， 大家都怎么看？讨论一下吧

 but it also不大正确的

it指代什么呢？clearing还是farmland，还是furniture？

B is the best choice

not  only... but also is the key to this question

B好,因为它符合逻辑,是farmland给了农民 relatively inexpensive houses and furniture而不可能是一个clearing of forests .同时B又是完美的not only but also,而且时态对应. not only那里的did是一个倒装而引起的