She asked the policeman to show her his credentials.她要求警察出示证件。He carded me when I bought cigarettes/beer.我买烟/酒时,他要我出示证件。The soldiers stopped them and said they must present their papers.士兵把他们拦住,说他们必须出示证件。We had to show our papers at the security desk.我们只好向安检台出示证件。