Therearenotmanyred—crownedcranestodayandthenumberofthem...

問題詳情：

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 

知識點：形容詞比較級

題型：選擇題