一道英语结果状语从句题

题目

一道英语结果状语从句题
It is ____diffcult _________.
A.so;that few of us to do
B.so;that few of us to do it
C.too;for anyone of us to do it
D.too; for anyone of us to do
,但AB答案只是 it 的差异,按我所学的知识,B 应该是对的.

答案