(单选题)

The headmaster announced that ______ who have made great contributions to the establishment of the new fruitful educational system would be praised and rewarded.

A.those

B.they

C.ones

D.these

参考答案：A

参考解析：

考查指示代词those的用法。句意：校长宣布，对那些为建立卓有成效的新教育体系做出重大贡献的人，将给予表扬和奖励。announce后that引导的是宾语从句，在宾语从句中是一个由who引导的定语从句，定语从句前缺少先行词，先行词指代的应是“那些人”。those为those people的省略形式。故选A。

知识点：