英Since that time,a great many effective methods have been developed to enable students to learn aSince that time,a great many effective methods have been developed to enable students to learn a foreign language

since then可以说成 since that time It is for a long time that since i left you.这句话有语法错误吗 英Since that time,a great many effective methods have been developed to enable students to learn aSince that time,a great many effective methods have been developed to enable students to learn a foreign language Promise you have lead since that day with the life that a life time isolat什么意思麻烦 he flew a doctor to a Welsh village.____he has flown to many unusual places A from then B by thenC by that time D since that time by this time、by that time、at this（that?） time、since then 的区别 His brother went away and has never been heard____.from ever since ,为什么不能用since thenA since then B from ever since C after that time D from then on 说A不和句意 ____ that time he has worked as a translator.A since B by C before D at选什么 为什么 Its been a while since the last time that weve seen each other Got me thinking bout that time when这首歌叫什么来着 _____he came,he would take some pieces of news.A every time B After C Since D Now that 英语翻译A recview of your account shows that some time has passed since you last made payment to us from then 与 since that time 有什么区别 Its been a while since the last time that weve seen each other Got me thinking bout that time when Thank you 了.Its been a while since the last time that weve seen each other Got me thinking bout that time when we were together You used to make me l It's a long time since还是It has been a long time since from ever since和since then和after that time和from then on的区别? ----It's a long time ( ) I saw you last.----Yes,and what a pity it is now that it will be a long time ( ) we see each other again.A before since B since when C since before D when before 考察的知识点是什么,since和before,when的区别when是 I haven't seen her （） the time （）she had theI haven't seen her （） the time （）she had the accident..A .for .that B .since .when C .since .as D .for .when ----It's a long time ( ) I saw you last.----Yes,and what a pity it is now that it will be a----It's a long time ( ) I saw you last.----Yes,and what a pity it is now that it will be a long time ( ) we see each other again.A before since B since when C