1 . They believe that any leftovers attract evil spirits in the night, so the food is dried up in the can and the can is then thrown out of the hut. ________(否则，要不然) they don’t waste anything. (根据汉语意思单词拼写)

2 . Besides, we need friends to share our joys and sorrows,o________ (否则) we will feel lonely. （根据中英文提示填空）