英语中的since,after,when等等后面一般用什么时态?

英语中的since,after,when等等后面一般用什么时态? 剩下的英语空求助,填单词after,while,when,before,as,since,until,till其中的一个 since,after,when before的区别 after as when before since 的区别如上 until与after,since和when得区别 英语when,while,since,for的用法? since when 英语选择题before,after,when,sincehave you known each other for long?not very,____we started to work in the ABC Motor Company.A.before B.after C.when D.since 英语选择题b为什么不行?It is 3 years _c___ he joined the army.A.before B.after C.since D.when 一刀考试的英语题John thinks it won't be long ( )he's ready for his new job.A.when B.after C.before D.since为什么 since和when在现在完成进行时中的区别 英语选择题（when,before,since,after)Nearly two thousand years have passed the Chinese first inventd the compass.A.when B.before C.since D.after主要说说为什么选它和那四个词应该注意的用法,浅层次的我会,但是深层的就 英语翻译a.after b.when c.since d.before和 because of 与 because的用法 I hardly knew anything about it _____you told meA.since B.after C.until D.when 英语翻译为什么用until 而不用when,或since,或after He ran off_____I could stop him.A before B after C since D when ever since,ever after 1道英语选择题 说明理由 谢谢1.five years passed _____he eventually found his missing son in the remote fishing village.A.after B.when C.since D.before