问题：
Why do some people live to be older than... to one
答案：
第一空： A.to see whether people’s personality affects their life span 第二空： D.They are more likely to get over hardship. 第三空： C.Such personality characteristics as self-discipline have no effect on longevity. 第四空： D.Mothers’ negative personality characteristics may affect their children’s life spans. 第五