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问题: 用select翻译

他在上学时被选为班长。
He ( ) the monitor when he was at school.

解答:

He ( was selected ) the monitor when he was at school.


被动语态的用法 构成

一般现在时is/am/are +done

一般过去时was/were +done

一般将来时will be +done

过去将来时would be +done

现在进行时is/am/are being +done

过去进行时was/were being +done

现在完成时has/have been +done

过去完成时had been +done

被动语态的核心就是 be + done,但be 根据时态有各种变化!