unit 1 establishing business relations
　dialogue a at the fair
　dialogue b at the airport
unit 2 business visiting
　dialogue a visiting the company
　dialogue b visiting the factory
unit 3 enquiries
　dialogue a an enquiry from a new customer
　dialogue b an enquiry from an old customer
unit 4 offers
　dialogue a a firm offer
　dialogue b a non-firm offer
unit 5 counteroffers
　dialogue a declining a counteroffer
　dialogue b accepting a counteroffer
unit 6 conclusion of business
　dialogue a sending an order
　dialogue b sending a contract
unit 7 shipment
　dialogue a packing arrangements
　dialogue b shipping advice
unit 8 insurance
　dialogue a asking for broader coverage
　dialogue b asking for breakage risk
unit 9 terms of payment
　dialogue a l/c payment
　dialogue b asking for easier terms
unit 10 claims
　dialogue a lodging a claim
　dialogue b settling a claim
unit 11 processing with given materials
　dialogue a processing with given materials (i)
　 dialogue b processing with given materials (ii)
unit 12 agency
　dialogue a application for agency (i)
　dialogue b application for agency (ii)