we went to Italy for a holiday last year. That must have bee

学习时间:2026-04-08 23:32:48 阅读：26

we went to Italy for a holiday last year. That must have been nice. 问题：为什么用must have been为什么不用must be?

安静的鸵鸟

2026-04-08 23:32:48

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must have + 过去分词是对过去事情的推测,因为去意大利渡假是发生在去年的事情,所以是对过去的推测,那一定很好。希望能帮到你,祝更上一层楼O(∩_∩)O有不会的欢迎再继续问我(*^__^*)