Thomas Alva Edison didn’t “invent” the light bulb (灯泡), but rather he ______ a 50 –year –old idea, which is not well –known.
—Are you feeling ________? —Yes.I'm fine now.
After two years' research,we now have a ________ better understanding of the disease.(2013·全国Ⅱ)
It is generally believed that teaching is ________ it is a science.
The businessman boasts to me that I can't find a ________ gold necklace,because his shop deals in the best.
Speaking of all the songs he has written,I think this is probably his ________ one.(2013·全国Ⅱ)