Question

【题目】Andrew wants to be_____ policeman, and he thinks it's _____ exciting job.
A.a; a
B.an; an
C.a; an
D.an; a

Answer 1

【答案】C
【解析】句意：安得烈想成为一名警察，他认为这是一项令人兴奋的工作。不定冠词a/an表示泛指，policeman以辅音音素开头，前面用不定冠词a，exciting以元音音素开头，前面用不定冠词an，所以答案是C。