A：Good morning．Beijing Trading Company．May I help you?B：Good morning．This is Mr．Smith of King Electronics Compa-ny．I'd like to speak to Mr．Zhong,please． A：We have two Zhongs here．Is that Bob Zhong,or John Zhong?B：Bob． A：Mr．Bob Zhong in the Overseas Sales Division?B：Right． A：I'm sorry,he's not in the office now． B：Do you have any idea when he'll be back?A：I'm sorry,I have no idea． B：Can you ask him to call me when he cames back?It's urgent． A：Yes,I will,Mr．Smith． B：Thank you． A：You're welcome． Dialogue B （A：Receiver B：George Richter C：White） A：Hello．ABC Gompany．May I help you?B：Hello．This is George Richter．May I speak to Mr．Davis?A：I'm sorry but he's in Shanghai on business． B：Do you have any idea when he'll be back?A：Probably sometime tomorrow． B：I have a question abut the E-4800 computer．Is there any oneelse who can help me?A：Of course．Miss White is the export manager．Would you like tospeak to her?B：Yes,please． A：OK．I'll just put you through． B：Hello．This is White speaking．Can I help you?A：Hello．This is George Richter of Beijing Trading Company．Is itpossible to make a change in our order?The order number is1518． C：And what kind of change did you want to make,sir?B：Well,we ordered twenty E-4800s,but we want to change themto P-6800s． L：Just a moment,please…Oh,I'm sorry,but they have alreadybeen sent． Dialogue C （A：Mary's father B：Jane） A：Hello． B：Hi．This is Jane．Is Mary there?A：I'm sorry．Mary is out right now．She went shopping with her Mom． B：When will she be back?A：I'm not sure．Why don't you call back later this afternoon?B：Will it be too late if I call around 10∶00 this evening?A：That's all right．We don't go to bed early． B：Thank you．Bye!A：Good-bye． A：Good morning．Beijing Trading Company．May I help you?B：Good morning．This is Mr．Smith of King Electronics Compa-ny．I'd like to speak to Mr．Zhong,please． A：We have two Zhongs here．Is that Bob Zhong,or John Zhong?B：Bob． A：Mr．Bob Zhong in the Overseas Sales Division?B：Right． A：I'm sorry,he's not in the office now． B：Do you have any idea when he'll be back?A：I'm sorry,I have no idea． B：Can you ask him to call me when he cames back?It's urgent． A：Yes,I will,Mr．Smith． B：Thank you． A：You're welcome． Dialogue B （A：Receiver B：George Richter C：White） A：Hello．ABC Gompany．May I help you?B：Hello．This is George Richter．May I speak to Mr．Davis?A：I'm sorry but he's in Shanghai on business． B：Do you have any idea when he'll be back?A：Probably sometime tomorrow． B：I have a question abut the E-4800 computer．Is there any oneelse who can help me?A：Of course．Miss White is the export manager．Would you like tospeak to her?B：Yes,please． A：OK．I'll just put you through． B：Hello．This is White speaking．Can I help you?A：Hello．This is George Richter of Beijing Trading Company．Is itpossible to make a change in our order?The order number is1518． C：And what kind of change did you want to make,sir?B：Well,we ordered twenty E-4800s,but we want to change themto P-6800s． L：Just a moment,please…Oh,I'm sorry,but they have alreadybeen sent． Dialogue C （A：Mary's father B：Jane） A：Hello． B：Hi．This is Jane．Is Mary there?A：I'm sorry．Mary is out right now．She went shopping with her Mom． B：When will she be back?A：I'm not sure．Why don't you call back later this afternoon?B：Will it be too late if I call around 10∶00 this evening?A：That's all right．We don't go to bed early． B：Thank you．Bye!A：Good-bye．