Before graduation we had got a lot of practical by doing a part-time job in the factory

问题补充：

Before graduation, we had got a lot of practical by doing a part-time job in the factory and it was really for all of us.

A. experiences; great experience

B. experience; great experience

C. experiences; a great experience

D. experience; a great experience

答案：

A. experiences; great experience

B. experience; great experience

C. experiences; a great experience

(答案→)D. experience; a great experience

解析：experience作经验讲时，是不可数名词，无复数；作经历讲时，是可数名词，单数用不定冠词修饰，复数加s。句意：毕业前，我们已经通过在工厂的业余工作获得了很多实际经验，多队我们来说真是一次很好的经历。所以选D。