there aren't enough reasons! there aren't enough people! there aren't enough glasses! there aren't enough susers! there aren'tconventional seeds to go around. there aren't enough numblers! there aren't enough shoes! 以此类推,找八个名次复数自己替换吧.
there aren't enough food there aren't enough water there aren't enough paper there aren't enough medicine there aren't enough chairs there aren't enough desks/tables there aren't enough compurters there aren't enough flour