In the distant past, friend relied on each other for their survival. They hunted together and defended each other against 61__________(danger) animals and enemies. In those days, if you didn’t have a friend, you would either starve, be eaten 62__________ killed. Nowadays, friendship isn’t 63__________(exact) a matter of life and death. However, friendship is still of great importance and not having a friend is something to be 64__________(concern) about. Most people look upon friends as someone they can depend on when they are going 65__________ times of trouble. In such times, friends provide them with emotional（情感的） support and sometimes financial help. It is in these troubled times 66__________ they find out who their true friends are. As an old saying 67__________(go), in times of prosperity, friends will be plenty; in times of 68__________(suffer), not one in twenty. And there is another saying 69__________ says you can hardly make a friend in a year, but you can easily upset one in an hour. So do your best to get along with and be grateful to all those 70 __________ are willing to side with you even when you are in the wrong as they are true friends and they are not easily come by.