After he was elected Chairman of Workers’ Union, he began to concentrate on helping une

After he was elected Chairman of Workers’ Union, he began to concentrate on helping unemployed.
A. /; the; the
B. /; the; /
C. the; /; the
D. /; /; the

(答案→)A. /; the; theB. /; the; /C. the; /; theD. /; /; the解析：考查冠词：第一空不填，因为chairman是表示职位，做主语补足语，不加冠词，第二空不填，Workers’ Union 是工会，第三空填the，是the+形容词，表示一类人，句意：在他当选工会主席后，他开始关注失业的人。选A。

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