Wang Yang (2nd L), chairman of the 13th National Committee of the Chinese People's Political Consultative Conference, joins a voluntary tree planting activity in the eastern suburbs of Beijing, capital of China, April 2, 2018. Other Chinese leaders including Xi Jinping, Li Keqiang, Li Zhanshu, Wang Huning, Zhao Leji, Han Zheng and Wang Qishan also attended the event. (Xinhua/Pang Xinglei)