We have history classes at school.Maybe most of us don’t understand（理解）（60）we study history.
（61）fact，if we study history，we can learn （62）personal stories andevents（事件）of people.Studying the past helps us to understand what ourancestors’（祖先）lives were（63）.And it also helps us to see how they lived.
We all know not everything that happened （64）the past is good.Somehelp us understand the mistakes（错误）of the past.And these mistakes willhelp people not to do （65）same things.People often learn （66）the past tohave a better future.
Our ancestors’decisions（决定）have influenced（影响）our life.Thedecisions（67）our own generation（一代人）will finally influence those whocome after us.In this only way，the world is truly connected（被连接）.History （68）not just the study of the past.It’s also the study of people，places，（69）events that can influence the future.

68（）