转换成疑问，否定

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/10/05 00:15:13

①我去过那个美丽的岛一次②我哥哥听说过那个著名的人名③他们刚刚丢失了一本书

解题思路：如下
解题过程：
①我去过那个美丽的岛一次
I have been to that beautiful island once .
Have you been to that beautiful island once ?
I haven't been to that beautiful island once .
②我哥哥听说过那个著名的人名
My brother has heard of that famous name .
Has your brother heard of that famous name ?
My brother hasn't heard of that famous name .
③他们刚刚丢失了一本书
They have just lost a book .
Have they just lost a book ?
They haven't just lost a book .
最终答案：略

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