Question

Many kinds of animals are ______. We must do something to save them.
A. on holiday                   B. in danger                    C. on show

Answer 1

B

试题分析：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。