－Do you know old lady in blue?－Yes she is a teacher of university in Beijing.A. a anB.

问题补充：

－Do you know old lady in blue?

－Yes, she is a teacher of university in Beijing.

A. a, an

B. the, an

C. the, a

D. an, a

答案：

A. a, an

B. the, an

(答案→)C. the, a

D. an, a

解析：考查冠词。 old lady in blue?特指穿蓝衣服的老妇人，用the； university in Beijing泛指北京一所大学的老师，university以辅音开头，用a修饰。所以选C。