怎样变这个主动句为被动语态?They don't use the room(他们未使用该房间）,变为被动语态,我觉得应是The room does't used by them,而答案是The room isn't used by them 为什么是isn't 而不是doesn't啊,

被动语态怎样变主动语态? 怎样变这个主动句为被动语态?They don't use the room(他们未使用该房间）,变为被动语态,我觉得应是The room does't used by them,而答案是The room isn't used by them 为什么是isn't 而不是doesn't啊, 怎样变被动为主动 被动语态变主动语态怎么变 主动语态变被动语态练习题 主动语态怎么变被动语态 被动语态主动变被动情况,什么时候不用被动语态, 主动语态变被动语态:They must build another house to live in 主动语态变被动语态怎么变啊? 主动句怎样变被动句求答案 被动语态变主动语态练习题不要选择填空 英语主动语态变被动语态例句一般过去时的 主动语态如何变被动语态变法语法 Who is repairing the bike?主动语态变被动语态 主动语态的句子变被动语态的句子 how many desks do they sell every month? 不及物动词怎样变被动语态? 英语中怎样将主动语态变为被动语态 英语中,主动语态怎样变为被动语态