—What do you want to be in the future Nick?—I want to be pilot. It is exciting job.A. a；aB

问题补充：

—What do you want to be in the future，Nick?

—I want to be pilot. It is exciting job.

A. a；a

B. a；an

C. the；an

D. a；the

答案：

A. a；a

(答案→)B. a；an

C. the；an

D. a；the

解析：表示事物类别前用不定冠词，元音音素前用不定冠词an，exciting第一个音为元音，辅音音素前用a，pilot第一个音为辅音，故本题选B。