填空题 Less than three weeks before a Chinese billionaires" banquet, sponsored by Bill Gates and Warren Buffett on September 29, only two Chinese businessmen have confirmed they are attending. Gates and Buffett initiated a project, " The Giving Pledge" , in June 1at persuading billionaires in the United States to give the 2of their wealth, 50 percent or more, to 3 Although the Microsoft mogul has announced that he would not lobby Chinese billionaires to follow 4, the banquet is turning into a test 5donating to China"s charities, 6the two American billionaires promote philanthropy in the world"s most populous country 7donating personal wealth to charity has yet to become a common 8 A deep-rooted concept among wealthy individuals in China is to leave their 9fortunes to their descendants, which might be a major obstacle 10donations to charity, according to Zhang Yinjun, spokesperson with one of China"s largest charity 11, the China Charity Federation. "If Gates and Buffett"s visit and banquet 12change Chinese billionaire"s concept on the handling of their fortunes, that would be a good start to 13more people to donate to society, " Zhang told Xinhua on Tuesday. " China has a totally 14social condition and environment, so 15or not Chinese billionaires accept Gates" and Buffett"s ideas, will be their personal 16, " Zhang said. Gates" project office is still having 17in confirming the attendance of others in the select group of about 50 wealthy individuals, as many still 18, said Zhang Jing, spokeswoman of the Bill and Melinda Gates foundation Beijing Representative Office on Tuesday. She said the office had to repeatedly convince those who received invitations that the organizers had 19combined donation plan for the charity meeting and that the activities would be closed to the media in order to keep the participants" 20confidential.