Our Chinese teacher told us interesting story and story was about Thomas Edison.A. an; aB.

问题补充：

Our Chinese teacher told us interesting story and story was about Thomas Edison.

A. an; a

B. the; the

C. a; the

D. an; the

答案：

A. an; a

B. the; the

C. a; the

(答案→)D. an; the

解析：冠词的用法。句意“我们的语文老师给我们讲了一个有趣的故事，这个故事是关于托马斯·爱迪生的”，因此选D。