—Really?Who will give lecture?—Mr Wang famous professor from Nanjing University.A. the; /

问题补充：

—Really?Who will give lecture?

—Mr Wang, famous professor from Nanjing University.

A. the; /

B. a;the

C. the;a

D. a;a

答案：

A. the; /

B. a;the

(答案→)C. the;a

D. a;a

解析：第一空指说话双方都知道的那个演讲，故使用the修饰；介绍某人表示“一个……的人”时，名词前面应用不定冠词。