Thenumberofrarered-crownedcranesisgetting

問題詳情：

The number of rare red-crowned cranes is getting __________and there is __________ living space for them. We should do something to protect them.

A. fewer ; smaller          B. smaller; less              C. smaller; fewer           D. fewer; less

【回答】

 B  

知識點：形容詞比較級

題型：選擇題