A: Hi. I want to talk to Mr. Green. B: He is tied up right now. A:你好。我找格林先生。 B:他现在正在忙。 A: Hello, this is Tom. I want to talk to David. B: Hang on a moment, please. I'll see if he's in. A:你好,我是汤姆。我找戴维。 B:请稍等,我看看他在不在。 A: I'm sorry to have kept you waiting. Mr. Simon will call back later. B: OK, thank you. Bye! A:抱歉让您久等,西蒙先生一会儿给您回电话。 B:好的,谢谢。再见!