完形填空中later和after的区别
问题描述：
完形填空中later和after的区别
A professor told his students to go into the city slums to study the life of 200 boys.he asked them to write reports about each boy's life and future.Everyone of the students wrote,“He doesn't have any hope.”
Twenty-five years___,another professor read about the earlier study.
A.later B.after C.ago D.before
求原因
答
Twenty-five years later 二十五年以后,later 置于时间之后
after 常置于时间之前,eg .after twenty -five years