We all need a friend.Because only one friend can save everyone from danger.But not all friends will protect us from danger.We all need to choose the right friends.Because there is no friend to help in danger without a true friend.Choosing friends is really a difficult matter.'That day, while going to the market, I saw two children holding hands and playing.One fell down suddenly and then saw another person pick him up by the hand and wipe away his tears.No one would do such a thing except a true friend.So we all should choose the right friends.