【题目】 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
在线课程【答案】D
【解析】
试题分析：考查代词。 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，故选D项。