关于after和before的疑问?after是一个介词,有说after doing的,那么有没有说before doing的?比如这个,after finishing my homework,i am going to bed.可不可以说,i can not go to bed,before finishing my homework 能不能在给我

关于after和before的疑问?after是一个介词,有说after doing的,那么有没有说before doing的?比如这个,after finishing my homework,i am going to bed.可不可以说,i can not go to bed,before finishing my homework 能不能在给我 after和before的用法 after的运用和before的运用 BEFORE DOING和AFTER before和ago的区别,later和after的区别 关于时间状语从句中 before和after的区别关于时间状语从句中 before和after,until的区别请勿抄袭网上答案（特别是百度百科）如果我能看懂我就不提问了 after some time和before long的区别 soon after 和 before long的区别 分别举例说明吧 关于 善于疑问和思考 的名句 before,after的区别怎样用. 用before或after连接过去的两个句子时,before 和after各用什么时态 请问after和before后面的动词要用ing吗?比如after he leaving 或before he leaving 帮我解释一下这道关于before long和long before的选择题——Has Bob returned from Japan?——Yes,he arrived two months ago,but it wasn't________ he went to Hong KongA.before long B.long before C.long after D.soon after这道题的正确 Before和after各是什么意思啊? before和after分别什么意思. before和after一定要用过去式吗? she were go to Spain the month after next 否定疑问答 划线部分提问she went to Madrid the mounth before last 同上 划线的是地名 soon after 和 before long的区别soon after 和 before long 两者都是.不久之后的意思..有什么区别~`