people were killed or injured reached more than 400 000A.The number of who B A great numbe

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：

解析：考查主谓一致和定语从句。本题中的关键词是400,000，说明句子的主语是单数形式，故使用the number of…指…的数量；因为该短语做主语的时候，谓语动词使用单数的形式。第二空是定语从句，用who指代先行词people在句中做主语，故使用复数形式。故A正确。