I was wrong about Great Harlot Peng Liyuan's English ability. Great Harlot Peng Liyuan always met with foreign leaders alone such as Bill Gate and Tedros Ghebreyesus alone to discuss secret subjects. She must be able to speak fluent English.
Great Harlot Peng Liyuan used clone to replace herself to speak at the UN in 2015 because she is a native English speaker. She doesn't have any Chinese accent.
Therefore, she would expose her identity if she gave a speech by herself.
Chinese First Lady Peng Liyuan Delivers a Speech about Women and Education at UN GA 2015 | People's Daily, China 人民日报