Spotlight: U.S. authorities tell int'l students to leave U.S. if universities go onlineChina urges U.S. to stop COVIDChinese Vice Foreign Minister Ma Zhaoxu to attend G20 meeting: spokespersonChinese, Qatari medical experts hold video conference on fighting COVIDSyrian workers arrange cotton fabric for making masks in DamascusChinese home appliance firms expand global market with great vigorChina hands over donated COVIDEU condemns Turkish decision to convert Hagia Sophia back to mosqueFrance makes face mask mandatory in all indoor public placesVoting begins in Singapore general election