Since we have a focused subject,we should not talk____A.at once b.at hand c.at intervals d.at random

we have known each other since we A.got to knowB.knew为什么选A? 1.Because/Since we read the book,we have learned a lot. we've been living in Montreal since we .A.have graduated B.have been graduating C.graduated.D.gratuate V We have learned a lot___we came to Australia.A since B for C after D by one and a half years (have/has) passed since we last meet.应该添哪个,为什么? 英语改错:I have been a fried with Li Ming since we go to primary school We have a lot of activities__ we came to school six yeare___ A,since;ahead B ,when;agoC ,since;ago D,when;before 英文好的朋友帮忙来看一下吧.是让写一篇有关物流管理的文章,Logistics professionals have mostly been trained to be forward focused.They are learning,however,that a firm can realise dramatic cost savings by applying forward-focu We have known each other___.A.since we were young B.after we were young C.when we are youngD.if we are young we arrived in china.we have seen a lot of chawe arrived in china.we have seen a lot of changes all over china(since)怎么合并? We have been here for more than year同义句Over a year has ___ since we ___ here lt's a long time since we met last同义句we have’t seen each other---- ----- we ___each other since we were children.(A know B kenw C have known D had known) we have played baskeyball______ we studied at thos school .A.since B.for C.in D.when We have been good friends since we met at school. We have called them that since we were l have been a friend with Li Ming since we went to primary school .里面这个have been 是什么语态? It’s three weeks since we （ ） him.A.see B.saw C.have had D.have seen