填空题 A travel agency is a retail business that sells travel related products and services to customers, on behalf of suppliers, such as airlines, car rentals, cruise lines, hotels, railways, sightseeing tours and package holidays that combine several products. In addition to dealing with ordinary tourists, most travel agencies have a separate department devoted to making travel arrangements for business travelers and some travel agencies specialize in commercial and business travel only. There are also travel agencies that serve as general sales agents for foreign travel companies, allowing them to have offices in countries other than where their headquarters are located.
The Introduction of a Travel Agency

A travel agency may sell customers travel related {{U}} {{U}} 31 {{/U}} {{/U}}.
Some travel agencies {{U}} {{U}} 32 {{/U}} {{/U}}in commercial and business travel only while some travel agencies have different departments to make travel arrangements both for {{U}} {{U}} 33 {{/U}} {{/U}}and {{U}} {{U}} 34 {{/U}} {{/U}}. There are also travel agencies serving as general {{U}} {{U}} 35 {{/U}} {{/U}}for foreign travel companies.