高中学历解放军武警士兵考军校-英语语法总结（六十一）

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　　被动语态讲解

　　5) had been done 过去完成时

　　例 By the end of last year, another new gymnasium had been completed in Beijing.

　　6) was/were being done 过去进行时

　　例A meeting was being held when I was there.

　　7) shall/will be done 一般将来时

　　例Hundreds of jobs will be lost if the factory closes.

　　8) should/would be done 过去将来时

　　例The news would be sent to the soldier's mother as soon as it arrived.

　　9) shall/will have been done 将来完成时(少用)

　　例The project will have been completed before July.