LONDON, July 11, 2016 (Xinhua) -- File photo taken on June 27, 2016 shows British Home Secretary Theresa May arriving for a cabinet meeting at 10 Downing Street in London, Britain. British Home Secretary Theresa May, the only remaining contender in the Tory leadership bid, is to become the new prime minister by Wednesday evening, Prime Minister David Cameron announced Monday. (Xinhua/Han Yan)