Parents wait outside a school as their children go through the national college entrance exam, in Taiyuan, north China's Shanxi Province, on Monday June 7, 2010. [Xinhua]  

A taxi driver sticks a tag on his windshield, offering free trips for college entrance exam-taking students, in Changsha, central China's Hunan Province, on Sunday, June 6, 2010. [Xinhua]