people were killed or injured reached more than 400 000A. The number of whoB. A great num

问题补充：

people were killed or injured reached more than 400,000

A. The number of ,who

B. A great number of, who

C. The number of, which

D. A great number of, whom

答案：

(答案→)A. The number of ,who

B. A great number of, who

C. The number of, which

D. A great number of, whom

解析：句意，死亡和受伤的人超过了400,000人。表示……的数量，用The number of；这个句子中包含一个定语从句，且关系词在定语从句中作主语，指人，故用who。