it is some time since+...与it has been some time since+...什么区别?
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itissometimesince+...与ithasbeensometimesince+...什么区别?itissometimesince+...与ithasbeensometimesince+..
it is some time since+...与it has been some time since+...什么区别?
it is some time since+...与it has been some time since+...什么区别?
it is some time since+...与it has been some time since+...什么区别?
没有区别.现在完成时态中,it has been+时间,常可简写成it is +时间
基本上没区别，都用来表示某动作持续了多长时间。这是一个将短暂性动作转变成延续性状态常用的结构。例如：He joined the army three years ago，不能说成He has joined the army for 3 years,但可以说成It is 3 years since he joined the army. 或者It has been 3 years since he ...
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基本上没区别，都用来表示某动作持续了多长时间。这是一个将短暂性动作转变成延续性状态常用的结构。例如：He joined the army three years ago，不能说成He has joined the army for 3 years,但可以说成It is 3 years since he joined the army. 或者It has been 3 years since he joined the army.
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some time it is true,some time is not.
it is some time before与it is some time since 的区别是什么,请举例说明,
为啥it is some time since与it has been some time since没区别
it is some time since+...与it has been some time since+...什么区别?
Farce over,it is time to face Farce over,it is time to face some things
It is time for some bread?(同义句）
为啥it is some time since与it has been some time since没区别谢谢了,
is it some book?
It is high time
It is high time
it is a time
what time is it
what time is it?
it,is,what,time?
It is time ()lunch.
It is time ? dinner.
it is time to
It is time to