怎样用持续性动词就是说,有多少个常用的?什么时候用.bob-----for about two days.HIS mot

怎样用持续性动词就是说,有多少个常用的?什么时候用.bob-----for about two days.HIS mot for two days 和for about two days有什么区别呢? Two days ago,Bob got a letter from his girlfriend,Mary.这篇文章的 什么时候将短暂性动词改为持续性动词?现在完成进行时与现在完成时的结构有什么区别? “大约两天”是for about two days还是about for two days 英语常用动词大概有多少个? two days later ; in two days ; for two days ; two days late的 come的持续性动词 何时用持续性动词 two days 和 for two days 有什么区别 About two days age about two days