Li Yang, a student from Beichuan Middle School and also a survivor from the devastating earthquake striking southwest China's Sichuan Province on May 12, 2008, mourns the earthquake victims at the ruins of Beichuan Middle School in Beichuan County, southwest China's Sichuan Province, on April 4, 2009. Li arrived here early Saturday, the traditional Qingming Festival or Tomb-sweeping Day, to mourn his teachers and classmates killed by last year's earthquake. [Xinhua]