1.since a ( )time,these islands have belonged to China 2.What is sixty (d__) by two?It is thirty

3.The roof fell____we had time to dash into the room to save th old woman.A.after B.before C.since D.as选A可以吗? It's a long time since还是It has been a long time since it's a long time since i last saw you 请翻译who have been a long time since. I have___him since a long time agoAmet Bseen Cknown Dfound it has been a long time since+?since后面加什么形式? 英选：jack bought th book ______ 1990a.since b.in YLAMPRODUCTIONS - My Heartbeat 的中文歌词.我有英文的.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 laugh,with a silly act With your funny voice and th 1.I ____you very much.It is a long time since we last met.(miss) am missing,为什么不是miss 52.he arrived in New York in 1896,_____some time later,he became a writer.1.when2.where3.since whichwhy? 1.since a ( )time,these islands have belonged to China 2.What is sixty (d__) by two?It is thirty It's a long time since it raimed last time帮忙翻译下这句话, since then可以说成 since that time 1.It's a long time since I left my hometown.A long time __ __ __ I left my hometown.改写句子,使1.It's a long time since I left my hometown.A long time __ __ __ I left my hometown.改写句子,使其与原句意思相近2.Please turn left at the It's been a long time since I last saw a film.还是It's a long time since I last saw a film. it's + a period of time + before/since 的区别?it's + a period of time + before... 与 “it's + a period of time since...”的区别是什么?什么时候用 since 什么时候用 before i think it's been a long time since i've heard anyone is good since在这里是什么用法? Since 1991 more than a decade since the time of the incidence of malignant tumors in our province r