-Really ? Who will give lecture ? What is it about ? -Professor Chen , president

—Really ? Who will give ____lecture ? What is it about ?

    —Professor Chen , _____ president of Beijing University . About pollution .

         A．the ;a        B．the;/          C．a ; the       D．a ;/

试题答案

D

解析:

president 作同位语，前不加冠词，前空可数名词。