问题
选择题
Many kinds of animals are ______. We must do something to save them.
A. on holiday B. in danger C. on show
答案
答案:B
题目分析:on holiday在度假,in danger处于危险当中,濒临灭绝;on show展览。句意:很多种类的动物都濒临灭绝,我们必须做些什么来挽救他们了。故选B。