eg：while walking the dog 为状语从句的省略 所以,while后面都加i

状语从句I saw a UFO while i was walking down the street yesterda 由while引导的时间状语从句! while引导的时间状语从句 while walking walking the dog ,you were careless and it got while you were walking walking the dog ,you were careless an while后面加什么?when和while的区别? when和while的时间状语从句中前后时态都有什么, 英语状语从句的问题.While I was there ,a young boy of about twelve cam 状语从句中的省略?while sanning books ,a true story drew her attentio when和while引导的时间状语从句的区别. when和while引导的时间状语从句的语法 While walking the dog,you were careless and it got loose and