问题
选择题
As the busiest woman in Norton, she made ________ her duty to look after all the other people’s affairs in that town.
A．this
B．that
C．one
D．it
答案
答案：D
本题考查it的用法。当不定式作宾语，同时又有自己的补足语时，常常用形式宾语it代替不定式，而把真正的宾语不定式后移。常用结构为：make/feel/find...+it+宾补（n./adj.）+to do sth.。