Children sing the song "A grateful heart" for their parents during a thanksgiving event in Beijing, capital of China, March 8, 2013. The first and second grade students of Chaoyang School of the High School Affiliated to Remin University of China made gifts cards and sang a song for their parents to show their gratitude on the occasion of the International Women's Day on Friday. [Photo/Xinhua]

Statues are covered by snow in Jilin city, Northeast China's Jilin province, March 8, 2013. [Photo/Xinhua]