—Is your mother English teacher?—No she isn’t. She is doctor.A. a; anB. an; a C. the; aD

问题补充：

—Is your mother English teacher?

—No, she isn’t. She is doctor.

A. a; an

B. an; a

C. the; a

D. an; the

答案：

A. a; an

(答案→)B. an; a

C. the; a

D. an; the

解析：句意：——你的母亲是英语教师吗？——不，她不是。她是一名医生。第一空因为English是元音因素开头的形容词，故用不定冠词an来修饰。第二空修饰doctor.故用不定冠词a。故选B。