根据课文内容完成短文。 At 3: 42 a.m. on July 28, 1976, the greatest earthquake shook Tangshan. Before that, something 1. ________ looked strange was happening, but the one million people of the city, 2.________ thought little of these events, were asleep as usual. One-third of the nation felt it. In fifteen terrible seconds, the large city lay in ruins. It seemed 3. ________ the world was at an end. The suffering of the people was extreme. Two-thirds of them died or were injured 4.________ the earthquake. The number of people 5. ________ were killed or injured reached more than 400, 000. Nearly everything was destroyed. What's worse, another big quake shook Tangshan again. Some of the rescue workers and doctors were trapped 6. ________ the ruins. No one knew 7.________ the disaster would last. Fortunately, the soldiers were sent to help the rescue workers. Many people were dug out and the dead were buried. Shelters were built for survivors. The children 8. ________ parents had died were sent to live with families in other cities. Things 9. ________ great need were taken to the city. Slowly the city began to breathe again.