British Liberal Democrats party leader Jo Swinson speaks at the Confederation of British Industry (CBI) annual conference in London, Britain, on Nov. 18, 2019. In their addresses at the Confederation of British Industry annual conference on Monday, the leaders of the country's three main national parties sent vastly different Brexit messages to a room filled with business leaders. (Photo by Ray Tang/Xinhua)

Britain's Prime Minister Boris Johnson speaks at the Confederation of British Industry (CBI) annual conference in London, Britain, on Nov. 18, 2019. In their addresses at the Confederation of British Industry annual conference on Monday, the leaders of the country's three main national parties sent vastly different Brexit messages to a room filled with business leaders. (Photo by Ray Tang/Xinhua)

British Labour Party Leader Jeremy Corbyn speaks at the Confederation of British Industry (CBI) annual conference in London, Britain, on Nov. 18, 2019. In their addresses at the Confederation of British Industry annual conference on Monday, the leaders of the country's three main national parties sent vastly different Brexit messages to a room filled with business leaders. (Photo by Ray Tang/Xinhua)

Britain's Prime Minister Boris Johnson speaks at the Confederation of British Industry (CBI) annual conference in London, Britain, on Nov. 18, 2019. In their addresses at the Confederation of British Industry annual conference on Monday, the leaders of the country's three main national parties sent vastly different Brexit messages to a room filled with business leaders. (Photo by Ray Tang/Xinhua)

British Labour Party Leader Jeremy Corbyn walks to speak at the Confederation of British Industry (CBI) annual conference in London, Britain, on Nov. 18, 2019. In their addresses at the Confederation of British Industry annual conference on Monday, the leaders of the country's three main national parties sent vastly different Brexit messages to a room filled with business leaders. (Photo by Ray Tang/Xinhua)