什么时候要把瞬间动词变为延续性动词

如题所述

用于现在完成时和过去完成时。

例如:
He bought this book three years ago.
---He has had this book for three years.
---He said he had had that book for three years.
这样可以么?追问

懂了

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第1个回答  2014-08-30
完成时
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