Therearenotmanyred—crownedcranestodayandthenumberofthem...

问题详情：

There are not many red—crowned cranes today and the number of them ________

          getting ________．

          A．are；fewer and fewer            B．are；smaller and smaller

          C．is；fewer and fewer               D．is；sma]ler and smaller

【回答】

D 

知识点：形容词比较级

题型：选择题