主题句：He's in a conference now.他正在开会。
SCENE 1
Helen: Hello! This is Helen. May I speak to Miss Du? 喂，我是海论，我想和杜小姐谈谈，可以吗？
Secretary: I'm sorry. She's in a conference now. May I help you with something? 对不起，她正在开会，有什么可以帮你吗？
SCENE 2
Chris: Excuse me, I'd like to see your manager. 打搅一下，我想见你们经理。
Secretary: I'm sorry. He's in a conference now. May I have your name please? 对不起，他正在开会，可以留下您的姓名吗？
SCENE 3
Guest: I'd like to speak with Mr.Chen, the engineer of your department. 我想和你们部的工程师陈先生讲话。
Jane: I'm sorry. He's in a conference now. 抱歉，他正在开会。
