prep 135

At one time, the majestic American chestnut was so prevalent that it was said a squirrel could jump from tree to tree without once touching the ground between New York
            State and Georgia.

(A) so prevalent that it was said a squirrel could

(B) so prevalent that a squirrel was said that it could

(C) so prevalent for a squirrel to be said to be able to

(D) prevalent enough that it was said a squirrel could

(E) prevalent enough for a squirrel to be said to be able to

A中 it was said是插入语吗？还是“it was said that”省略了it， 怎么来判断选A不选B？

只用被动不如主动来否定A太牵强了吧

麻烦NN给看看吧

a 应该是插入， b 会产生感觉 so prevelent 导致 squirral was said... 不是很好。相比较a 很自然 it is said that