Parents wait in the rain outside Ningbo No.4 High School, while the first test of gaokao is being held in Zhejiang province on June 7, 2013. Candidates had to leave home as early as possible in case of rainstorm-triggered traffic jams. [Photo/CFP]

Gaokao candidates and their parents wait outside the examination rooms under rain in Taiyuan, Shanxi province, on June 7, 2013, the first day of the 3-day exam. Many parents escorted students to the test sites because of the bad weather. [Photo/CFP]