问题
选择题
Andrew wants to be _______ policeman, and he thinks it's ________ exciting job.[ ]
A. a; a
B. an; an
C. a; an
D. an; a
答案
答案：C
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Andrew wants to be _______ policeman, and he thinks it's ________ exciting job.[ ]
A. a; a
B. an; an
C. a; an
D. an; a
答案：C