SORU: paragrafta boş bırakılan yere uygun düşen cümleyi bulunuz
In 1912, a German weatherman named Alfred Wegener declared that all the continents of the world had once been joined together and were now drifting around the face of the Earth like giant rafts. At first, Wegener's claim attracted little interest. Most would have given up, but not Wegener. -----. When this still failed to provoke a reaction, he brought out a second edition. That did it. Many of the world's top experts on geology gradually began to agree with him.