题目

题型：不详难度：来源：

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

D

解析

it作形式宾语，真正的宾语是后面的动词不定式短语to look after all the other people’s affairs in that town。注意:只有it能作形式宾语,不能用this, that或one等其他代词。