关于must have been的用法

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/07/05 23:15:30

关于must have been的用法
must have been用法是作对过去的事情猜测,例如she must have been a singer
但是如果有一句话是这样,he must have noticed me,我应该翻译成“他曾一定是注意到我了”还是翻译成“你本必须注意到我（实际上没注意到）” 应该怎么区分这两种用法

现在must have done都是表推测,要表达“本应”的含义都用should/could have done.

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