听力原文： W: May I speak to Mr Li? M: Which Li, ma' am? There are two Lis here. W: Oh? Mr Li, head of the Export Section. M: Oh, the chief? That's Mr Michael Li, then. W: Is that right? M: I'm sorry, but Mr Li's gone on a trip. W. I see. When will he return? M: He'll be back next Monday. W: All right. I'll call on Monday again. M: May I have your name? W: Mrs Dorothy Preston. M: Mrs Dorothy Preston. Is that Dorothy with a 'y'? W: That' s right. M: I'll tell Mr Li you called when he returns. W: Thank you.Where is Mr. Li?A．He is on holiday.B．He is out for lunch.C．He is on a trip.
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