单项选择题 No credit will be offered（）you place an order for more than 40.000 units.

单项选择题 A:Good weekend? B:（）

单项选择题 Mr. McNeil asked Mr. Don Bradley to ship the goods（）air.

单项选择题 （）the Manager’s not available at the moment. But the Assistant Manager is here.How Can I help you, madam?

单项选择题 A:Welcome to Bibury Systems. B:（）

单项选择题 （）,three months ago I could not have negotiated this deal.

单项选择题 Is it possible（）

单项选择题 A: Would you like a cup of coffee? B:（）

单项选择题 The new executive has done well to make the wholesaler agree（）

单项选择题 A provisional agreement is one（）

单项选择题 The two parts reached no solution on the final item（）

单项选择题 The researcher has to start looking for a company（）

单项选择题 I just received a proposal（）

单项选择题 We use our tongue to（）.

单项选择题 She said that she wouldn't mind（）the typing work for you.

单项选择题 In those early days, the boy company's（）business was model railways and cars.

单项选择题 She（）mail the package before the post office closes.

单项选择题 The seller was trying to sign a substantial order（）

单项选择题 They look forward to（）the new products soon.

单项选择题 The telephone line is（）busy at the moment.