A:Good morning ! May I help you ? B: Good morning ! Is Mr . Smith in ? I'm Cheng Jun from China National Petroleum Corporation . I'd like to see him . A: Do you have an appointment with Mr . Smith ? B: Am . No , I have an urgency to talk with him . A: Wait a moment , please . I'll tell his secretary that you are here . B: Thank you . A: I'm sorry . He is holding a meeting until ten o'clock . B: It's <MASK> now . And I'll wait for him .
nine o'clock five o'clock twelve o'clock