all of as find ___necessary to take exercise every dayA.this B.that C.it D.them 为什么?
问题描述：
all of as find ___necessary to take exercise every day
A.this B.that C.it D.them 为什么?
答
应该是all of us find ___ necessary...吧……
选C.it
宾语补足语
sb.find / think /feel + it + adj.+ (for sb.) to do sth.
eg.
She finds it necessary to take down notes while listening.
They feel it important to have some working experience.