对于when I finished与when I have finished,用法有什么区别,或者说注意什么比如when I——this book,I'm going to sleep.为什么答案是have finished,finished不行吗?
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对于when I finished与when I have finished,用法有什么区别,或者说注意什么比如when I——this book,I'm going to sleep.为什么答案是have finished,finished不行吗?
对于when I finished与when I have finished,用法有什么区别,或者说注意什么
比如when I——this book,I'm going to sleep.为什么答案是have finished,finished不行吗?
对于when I finished与when I have finished,用法有什么区别,或者说注意什么比如when I——this book,I'm going to sleep.为什么答案是have finished,finished不行吗?
when引导的是从句,逗号后面的是主句.
如果前面用过去时,后面的主句就该用过去的时态.
如果前面用现在完成时,后面的主句就该用现在或将来的时态.
对于when I finished与when I have finished,用法有什么区别,或者说注意什么比如when I——this book,I'm going to sleep.为什么答案是have finished,finished不行吗?
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