21일짜 매일 토익 RC 2번 문제에서 he was working -> he had been working 으로 사용해야 하는 거 아닌지요?Before Lester was designated head of the human resources department, he was working as lead supervisor at the company`s Wichita plant.
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오히려 과거와 과거완료로 구분하면 촌티나고 더 어색해요