问题补充:
As the busiest woman in Norton,she madeher duty to look after all the other people’s affairs in that town.
A. this
B. that
C. one
D. it
答案:
A. this
B. that
C. one
(答案→)D. it
解析:本题考查it作形式宾语,代替to look after all the other people’s affairs in that town,其他选项均不可以充当形式宾语。