The role of Chinese Dama in the economy has been over-estimated by some western media ______ their “gold rush” has had little influence on gold prices.
Scientists have achieved a major ___ in the search for a cure for cancer, ____ is good news for those who suffer from cancer.
—Mary was being badly treated when John happened to pass by and helped her out.—I think it was not a pure ________but had been well planned.
Einstein’s Theory of Relativity was so __________that few people could understand it at that time.
Since entry into high school the students have been ____ staying up late in the evening and getting up early in the morning.
—Was it under the tree _______ you were away talking to a friend?—Sure. But when I got back there, the bike was gone.