Mary and Linda are twin sisters.They are my 1 ,and my good friends,too.We live in the same town.so we can 2 each other very often.We know each other quite well.Although Mary and Linda look the same,they are quite 3 in many ways.Mary is a few hours older,but a little 4 .She is heavier and smarter.How about Linda,then?She is thinner and more outgoing.They both like sports,but Linda is more 5 .She is better at sports than Mary.They are both very popular in school.