根据下面资料，回答1-20题
Bill Gates, who co-founded Microsoft and led the company as it became a technology juggernaut,is stepping down from the company's board to spend more time on his philanthropic work.
Gates, who made the___1____Friday afternoon, said in a LinkedIn post that he wants to "dedicate more time to philanthropic priorities___2____global health and development, education,and my increasing engagement in___3____climate change. " He declined to comment beyond the post, his spokeswoman Bridgitt Arnold said.
Gates____4___Microsoft in 1975 with his high school friend Paul Allen,____5___died in October 2018. His___6____zeal helped create a company that dominates the personal computing ___7____. In the process, Gates amassed a___8____. He is the second-wealthiest person in the world, with a total net worth of $102 billion,____9___only Amazon founder Jeff Bezos, according to the Bloomberg Billionaires Index.
Gates began moving away from Microsoft in 2000, ____10___he gave up the chief executive post he had long held. Steve Ballmer___11____the role, with Gates serving as chief software architect and chairman. In 2008, he stepped down as chief software architect to spend the bulk of his work time at the Bill and Melinda Gates___12____. He stepped down as Microsoft's chairman in 2014.
Gates will____13___to serve as technology adviser to Microsoft chief executive Satya Nadella and others at the company. Microsoft is not___14____Gates's seat on the board. " ___15____Microsoft, stepping down from the board___16____means stepping away from the company," Gates wrote.
In a statement, Nadella said he___17____continuing to work with Gates. Microsoft declined to make Nadella ___18____for further comment.
Gates will also step away from his one other board position, at Berkshire Hathaway, the company___19____by his longtime friend Warren Buffett."Warren and I were the best of friends long___20____I joined and will be long after," Gates wrote.
第（9）题选

A between

B behind

C beside

D around