it is some time before与it is some time since 的区别是什么,请举例说明,

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