when did you start wroking? I started work when I was twenty-two.why第一句start 用动名词而后句过去为什么第一句是动名词，第二句式动词原型。

When did you start out? when did you start to______? when did you start to learn english? 怎样回答When did you start school? when did you start （）(hiccup) When did it start? when did you start learning English?改为同义句 When did you start learning English怎么回答 when did you start class today是什么时态 when did you start doing it?请翻译 when did you start collect easy book?如何回答 when did it start? 解释 when were you stading和when did you start有什么区别吗? When did you start skating?的答语可以是when i was 7 years 你什么时候开始学英语的 1.when did you start to learn english?2.when did you start learning english When did you start to speak english,that's really good for you!中文意思是什么? 是when did it started还是when did it start? 英语时态知识 when did you start class today?为什么是过去式?