----Have you heard of the school bus accident recently?
-----Yes. the victims was over 20 and most of them died.
A. A number
B. A number of
C. The number of
D. The number
网友回答
A. A number
B. A number of
(答案→)C. The number of
D. The number
解析：A number of若干，许多；The number of……的数目。句意：你听说最近的校车事故了吗？——是的，受害人的数目超过20人，他们中大部分死了。结合语境可知选C。