非谓语动词to be done和done

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/09/21 10:48:12

非谓语动词to be done和done
A new library is being built in our school and it'll be accessible to us students when(completed)next year.为什么不用to be completed?时间是next year应该用表将来啊

完整版是it'll be …… when it's completed next year.在时间状语从句中,用用一般现在时表将来（本题中when 引导的是时状从句）当从句和主句主语一致时,从句可省略主和系动词,本题即省去it‘s

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