Anumberofanimals            killedandthenumberofthem   ...

问题详情：

A number of animals             killed and the number of them            getting        smaller and smaller.

   A. has been; are               B. has been; is              

   C. have been; is               D. have been; are

【回答】

C     a number of“许多……；大量……”，作主语时谓语动词用复数；the number of“……的数量”，作主语时谓语动词用单数。故C项正确。

知识点：主谓一致

题型：选择题