He in a foreign trade company for five years, but he now is a volunteer teacher in a vill

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A. had worked
(答案→)B. worked
C. works
D. has worked
解析：    
试题分析:考查动词时态。根据后句he now is a volunteer teacher可知他在外贸公司工作是过去的事情，不涉及现在，所以用一般过去时态，故B选项正确。句意：他在一家外贸公司工作过五年，但是他现在是一个小村子里的志愿教师。