来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/25 15:21:59
know 是不是瞬间动词?
Susan and Jenny are pen pals.They _________ each other for about two years.
A) knew B) had known C) will know D) have known
我选的是A.可是答案是D.所以求解释,know是瞬间动词还是延续性动词?
解释为“认识”的时候 就可以延续用
解释为“知道”的时候 就数瞬间动词
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