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 _____ _____ (活的教科书) for young people. 4. The zoos _____ homes _____ (提供) many endangered animals and help to _____ (教育) he public about _____ _____ (关心) them. |