“How does he makeliving”? Asmatter of fact, He is a policeman.Aa，aBa, the Cthe, a

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(答案→)A. a，a
B. a, the
C. the, a
D. the, the
解析：句意：他如何生活？事实上，他是一名警察。make a living(谋生)和As a matter of fact（事实上）都是固定短语。故选A。 
考点: 考查冠词的用法。