It’s based on the idea all people are created equal is accepted by most people.A. that

问题补充：

It’s based on the idea all people are created equal, is accepted by most people.

A. that; that

B. which; which

C. which; when

D. that; which

答案：

A. that; that

B. which; which

C. which; when

(答案→)D. that; which

解析：考查同位语从句和非限制性定语从句：句意：它建立在所有的人生来平等这个观点的基础之上，这一观点被大多数人所接受。第一空用that引导同位语从句，解释中心词the idea的具体内容。该从句不缺少任何成分，所以用that来引导。第二空用which来引导非限制性定语从句，来修饰先行词the idea. which等同于the idea，在该非限制性定语从句中充当主语。选D。