Pupils sing songs to celebrate the children's day on the playground in a primary school in Dongbei Town, Mianzhu City, southwest China's Sichuan Province, May 31, 2008.

Liao Yu (front), a quake-wounded boy from the quake-hit Deyang of southwest China's Sichuan Province, plays basketball with volunteers in Beijing geriatric hospital in Beijing, May 31, 2008. More than 10 children from quake-hit Sichuan Province treated in Beijing geriatric hospital will celebrate the International Children's Day in Beijing.