1.【单选题】

He ______ at the company for five years before he was promoted to a management position

had worked

has worked

was working

will have worked

查看答案

参考答案: A

【考情点拨】本题考查时态。

【应试指导】句意:他在被提拔到管理岗位之前,已经在这家公司工作了五年。主句动作“工作"发生在从句动作“被提拔”之前，从句动作已是过去时，故主句动作应用过去完成时。故选A

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