He failed in the driving test again. He .

I don’t think ________ possible to master a foreign language without much memory work.

I acquired ______ Van Gogh from a businessman from Paris the other day.—Really Are you sure it’s ______ real one

________did your uncle leave his home town —-He ___________for nearly twenty years.

填入下面文段空白处的词语，最恰当的一组是（ ）有许多论文所引证的论述能够兼顾历史和科学前沿．________________________包括该领域中古老又权威的论断、方法和数据，________________________包括了最新研究成果及理论或实际需求，反映出作者的理论眼界。一位优秀的科学家________________________与当今学者的研究成果互相联系．且兼顾经典，________在研究其论文时不仅得到论点、论据．________________________能获得进一步探讨的方法与空间。