The speech contest will begin with a short presentation followed by a question-and-answer session when audience members will be chosen _______ in order to be fair.
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.