19．人们相信，总有一天会有足够多的动物再次在野外生活。

18．National natural protection zones should not be opened to tourists. Do you agree?

18。国家自然保护区不应该向旅游者开放。你同意吗？

17.　 Do you know why dinosaurs died out suddenly about 65 million years ago?

17.　 你知道恐龙为什么在大约65万年前突然灭绝了？

16．What do you suggest we should do to protect wildlife?

16．请你建议我们应该做些什么来保护野生动植物你呢?

15．Do you think the pandas in China are in danger/are being endangered?

15。你认为中国的熊猫正处在危险中吗？

14．What can we do to protect the Milu Deer from disappearing again?