天山7-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.

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

答案为A或者B，如果A，则but it also改为it but also。

即使改过来了，我觉得还是B对。后面的平行关系the systematic clearing of forests in the United States create farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture和从句关系the systematic clearing of forests in the United States create farmland (especially in the Northeast), which gave consumers relatively

inexpensive houses and furniture哪个比较好点？

Not only＋v．．．， but also＋v．．．一定是一个平行结构，也就是说Not only和but also后面接的动词必须是用一个时态．

Ｂ中Not only did ．．．but also　caused 动词都是过去式，一看就知道是答案了

这个很明显的，而且很常用，可以用做快速排除哟