I must clean the room.改成被动语态

来源：学生作业帮编辑：大师作文网作业帮分类：英语作业时间：2024/11/10 15:46:48

The room must be cleaned (by me).
再问：解释，谢谢
再答： clean的被动语态是"be cleaned". 保留must的话，就成了“must be cleaned". I和room一个subject,一个object对调位置，所以the room要放在最前面。 by me这一部分则是可有可不有。The room must be cleaned已经带了”by me“的意思了，加上了by me更完整些。

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