British Secretary of State for Scotland David Mundell arrives at Downing Street for a cabinet meeting in London, Britain on Nov. 20, 2018. (Xinhua/Han Yan)

British work and pensions secretary Amber Rudd arrives at Downing Street in London, Britain on Nov. 20, 2018. Amber Rudd, who was former home secretary, returns as the work and pensions secretary, a post held by Esther McVey, who stepped down last Thursday in protest against the UK-EU draft deal.(Xinhua/Han Yan)

British Secretary of State for Business Energy and Industrial Strategy Greg Clark arrives at Downing Street for a cabinet meeting in London, Britain on Nov. 20, 2018. (Xinhua/Han Yan)

British Home Secretary Sajid Javid arrives at Downing Street for a cabinet meeting in London, Britain on Nov. 20, 2018. (Xinhua/Han Yan)

Britain's Northern Ireland Secretary Karen Bradley arrives at Downing Street for a cabinet meeting in London, Britain on Nov. 20, 2018. (Xinhua/Han Yan)

British Secretary of State for Exiting the European Union (EU) Stephen Barclay arrives at Downing Street in London, Britain on Nov. 20, 2018. The newly appointed Brexit Secretary replaced Dominic Raab who resigned over British Prime Minister Theresa May's withdrawal agreement. (Xinhua/Han Yan)

British Secretary of State for Exiting the European Union (EU) Stephen Barclay arrives at Downing Street in London, Britain on Nov. 20, 2018. The newly appointed Brexit Secretary replaced Dominic Raab who resigned over British Prime Minister Theresa May's withdrawal agreement. (Xinhua/Han Yan)

British Secretary of State for Exiting the European Union (EU) Stephen Barclay arrives at Downing Street in London, Britain on Nov. 20, 2018. The newly appointed Brexit Secretary replaced Dominic Raab who resigned over British Prime Minister Theresa May's withdrawal agreement. (Xinhua/Han Yan)

British Secretary of State for Exiting the European Union (EU) Stephen Barclay arrives at Downing Street in London, Britain on Nov. 20, 2018. The newly appointed Brexit Secretary replaced Dominic Raab who resigned over British Prime Minister Theresa May's withdrawal agreement. (Xinhua/Han Yan)

British work and pensions secretary Amber Rudd arrives at Downing Street in London, Britain on Nov. 20, 2018. Amber Rudd, who was former home secretary, returns as the work and pensions secretary, a post held by Esther McVey, who stepped down last Thursday in protest against the UK-EU draft deal.(Xinhua/Han Yan)