Until recently scientists would have disapproved of such an idea.啥意思?

Until fairly recently until recently这个recently是修饰until吗? Until recently中until是什么词性? 请问 until recently 如题 until recently+过去时还是完成时? Not until recently和until recently的区别和用法是什么? 英语 介词后可接副词吗?比如说until recently scien museum 怎样造句 Until comparatively recently.对应中文应该怎么说呢?原文:Until compartively recently the opportunities for criminal activity on the Internet have been low. 为什么这个句子用until不用when 并翻译until recently,Anna worked as a teacher in Japan. until ( ),I know him to have diedA.recent B.recently 说出原因until是连词还是介词? A Not until recently B Not recently C Until recentily D Recently until_______was leisure generally considered a waste of time.2._______leisure was generally considered a waste of time.王老师希望你能详解下选项的问题 until recently后面的接个句子用什么时态,为什么? Until recently scientists would have disapproved of such an idea.啥意思? (18:6) ----(Until/When) recently,Anna worked as a teacher in Japan. It was not until very recently that had the theory been accepted.那里错了? ______leisure was generally considered a waste of time.A Not until recentlyB Not recentlyC Until recently D Recently until这里我选择的是A 怎么答案不是..not在这里充当什么成分..一头冒水. 问一道英语语法题求解答啊!1.The comet has recently changed direction toward Jupiter,which is leading scientists to wonder about the composition of the object.(A) which is leading scientists to wonder about(B) this development leading scien