The policeman asked the boy his name and how old he．

A．was

B．had

C．has been

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答案解析

句意：警察问男孩的名字和年龄。本题考查从句时态的呼应。主句是过去时，宾语从句要跟主句一致。故A正确。【知识拓展】宾语从句的谓语动词应与主句中的谓语动词在时态上呼应。注意以下几种情况。(1)无需呼应的情况：若主句谓语动词的时态为现在时或将来时，宾语从句的谓语动词可根据句意的需要使用所需要的时态。(2)主句为过去时的情况：若主句谓语动词为过去时，宾语从句的谓语动词应用相应的过去时态。(3)从句为客观真理的情况：当宾语从句的内容是客观真理或客观事实，可以不受时态呼应的限制，即使主句谓语动词为过去时，从句仍用一般现在时。

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