The kind-hearted man,who thinks ___ his duty to help poor people ,is popular with many people who know himA it B thatC oneD this
问题描述：
The kind-hearted man,who thinks ___ his duty to help poor people ,is popular with many people who know him
A it
B that
C one
D this
答
A it是形式宾语代替后面的to help poorpeople
think it one's duty to do sth
认为干某事是某人的责任