The old man.(retire)by the time thewar.(b

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  • The old man (had retired) by the time the war (was) over.

    解析:首先讲一下by the time 的用法

    1.表示将来的时间.

    主句用将来完成时,而从句用一般现在时来表示将来的动作.

    如:I will have finishied the work by the time my father comes back.

    2.表示过去的时间.

    主句用过去完成时,而从句用一般过去时.

    如:He had built a lab for himself by the time he was 12 years old.

    鉴于战争结束,所以描述的应该是过去的时间,所以遵从第二条.

    希望得到你的采纳!