it's been several weeks since he___(join) the music club有since的话后面要用什么时态

We ----on it for several hours but we have not yet reached any conclusionA.work B.are working C.have been working D.have been worked it's been several weeks since he___(join) the music club有since的话后面要用什么时态 --------for several times,we decided not to do it again.A.having scoldedB,having been scoldedC,she has been scoldedD,since she was scolded是哪一个,为什么? It was r____ that several people had been arrested. It was r___ that several people had been arrested. I am writing to ask you come to our class for a visit.I've ____heard that you havo been to Greece.In our Greece unit,we ____have been learning about it's rich culture and long histury.____Since you have visited Greece several times,so I would like to 英语翻译Some customs,holidays,and traditions are very hard to trace to their beginnings.We just do it and cannot explain why.April Fool's Day,and how it originated,have been explained in several ways,but no one is quite sure.It is believed that A It's been awhile. it's been coverd.. We have been ______for several hours but we have not yet reached any conclusion.A.working it out B.working out it C.working on it D.working it on it's said that there have been several new evens-----the program for the Beijing Olympics Games.A made upB resulted fromC turned outD added to为什么 It's several hundred years old.(同义句替换) It __ __ several hundred years ago. 一道英语题目~请帮个忙,谢谢we____on it for several hours but we have not yet finished the work.A.work B.are working C.have been working D.have been worked选哪个?为什么.对不起,我没分了 英语翻译When we were young Funny how things just tasted better When we were young When we were young Funny how things just seemed so easy When we were young It’s been a long day It’s been a long day It’s been a long day It’s been a long d ‘It's been six years since we last saw each other’怎么翻译? it's been six years since we last saw each other是个什么从句? 求歌词：it s been a long time since we drank the arsenic it's been a lng time since we last met 中文翻译