Up to now,the program ____thousands of children who would otherwise have diedA.would save B.savesC.had saved D.has saved

UP to now up to now 造句 up to now 造句 just now ,so far ,up to now The children are__(catch) butterflies now ,and up to now,they___(catch)a lot now it's up to up to now什么意思? Up to now的用法 用 up to now 造句 up till now 与up to now区别 up to now和up till now有什么区别 up till now和up to now的区别jiji up to now 和 up till now 的区别up to now和up till now的区别. paying the piper 具体句子：.....and now am paying the piper trying to get caught up... A policeman comes to him.The man gets up right now and runs dqwn the road. my boy now jump from the tops of houses,up to the roof翻译下! up till now/up until now/up to now这三个用法有什么区别求解 Up till now有这种说法吗?Up till now是不是等于Up to now?