Chinese President Xi Jinping has been meeting with various world leaders who have come to China for the Beijing Winter Olympics. President Xi on Sunday met with Pakistani Prime Minister Imran Khan, Argentine President Alberto Fernandez, Polish President Andrzej Duda, Singaporean President Halimah Yacob, Grand Duke Henri of Luxembourg, Prince of Monaco Albert II and Mongolian Prime Minister Luvsannamsrai Oyun-Erdene.