神马作文网请问after和before后面的动词要用ing吗?比如after he leaving 或before he leav
请问after和before后面的动词要用ing吗?比如after he leaving 或before he leav
after、before后面加ING形式吗
He is leaving for Shanghai（ ）three days.【A.after B.before C.
用before或after连接过去的两个句子时,before 和after各用什么时态
before和 after的区别
after和before的用法
before和after一定要用过去式吗?
用before+ing形式与after+ing形式造句
after和before
BEFORE DOING和AFTER
before是介词,介词 后面的动词要用动词Ing 的形式
before,after的区别