【简答题】A.Too many animals eating the plants ill one small area. B.Planting too much vegetation in one small area. C.Too many people building houses in one small area. D.Bringing together the wrong kinds of a...
【简答题】完成句子。 1. Zoos are terrible places for animals _____ _____ (生存). 2. The animals _____ _____ (被关在) in the tiny cages and can _____ _____ _____ _____ (几乎不能动). 3. Zoos are important places. They are like...