107. The Curies are best known for ____ radium and they won the Nobel Prize in 1903.
Liu Xiang's Olympic dreams were shattered(破灭)forsecond time when he unfortunatelycrashed at first barrier in the ll0m hurdles heats in London.
—I see you got a "D" in biology._? —Well, I found that subject hard. I think I'II drop it for history.
Some aspects of a pilot's jobbe boring, and pilots oftenwork at inconvenient hours.
Though it's a challenging job, he did itit took me.
—What's the matter with John? He has been sitting there for hours. —A postcard from his fatheran attack of home - sickness in him.