when did you start class today是什么时态

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 you stomachache start?Five minutes.A.long B.before C.time D.ago. 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 you ___ today?In the morning.A.started reading B.started read C.startreading D.start read -（）did you start skating、 - Fire years ago.选什么?是不是选BA.when B.How long C.How often 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?a,since i was five b since five years ago c when i was six d for six years选哪个,为什么? --( ) did you start to play tennis?--I started to play tennis when I was seven.A.When B.How long C.What time D.How far选择,说明,