When did you become a pioneer?

When did you become a pioneer? when did you become a pupil?怎样回答? 不是过去时吗 为什么是become 不是 became?When did you become a housewife? since when did/do you become so diligent是did 还是do?为啥 When did you become a sales executive--Translate to Mandarin.Which is correct?1)When did you become a sales manager.2）When did you become sales manager--Translate to Mandarin.Answer:1)你几时成为销售经理. -When did you become a teacher?-In 1999.I___in this school since then. since when did you two become such good friends?中文意思 When did you become a housewife?变陈述句you became a housewife.when did不要了吗?when是时间状语吗? When __ the Youth League?In 2004 急A did you jionB have you become a memberC did you take part inD have you joined When did you leave? When did you coneback? ①when did the singer first become famous ②How an①when did the singer first become famous ②How and why did he /she first become famous ③what famous songs she recorded when?④How many CDs she sold ⑤How did you find out about him ⑥Is he s when did zhangjie first become famous 用英语回答 did,she,a,when,champion,become,swimming(连词成句) When did California become a state?in English When did she become a violinist的同义句 When did she become a violinist的同义句 Since when have you become active?翻译