Only recently _____to realize the dangers caffeine might bring to our health .A.that scientists began B.have scientists begun C.scientist have begun D.that did scientist begin正确答案为B,可是D为什么不行?首先only用于句首

翻译this problem came to our attention only recently Only后面的倒装only then,only recently,only in the last year,only the other day,only in this way,only when we checked the date..各种情况后面的倒装,给例句.. Growing uporhaving growing up?___mostly in small town,i'd only recently fallen in love with cities. Drink beer,do not look for me!I can only drink water recently这句话中文说的是什么 recently意思? recently是什么意思 recently是什么意思 comparative recently identity和identification的区别The geneticists only recently discovered the ( identity) of the gene that causes the disease.为什么不能用identification Only recently----to deal with the environmental problems.A something has doneB has something doneC has something been doneD something has been done原因、翻译 Only recently have they come to think of it as something look through请帮我翻译一下句子意思,还有句子的语法用法, 请帮忙分析一个英语句型结构,I think it is perhaps the case that some people associated with the company have only recently come to realize this. 英语翻译The early universe contained only the lightest elements,hydrogen and helium.Heavier elements,such as carbon,form only in nuclear reactions in stars and are dispersed when the stars explode.A recently discovered gas cloud contained carbon It was only when I read his novel once again recently ____ I came to realize ..It was only when I read his novel once again recently ____ I came to realize the effect it ___ on the young generationa.until; put b.that; had c.then; made d.did; has选B, only only only only