A. We regret that the goods you inquire about are not available.B. We can offer you a quotation based upon the international market.C. Moreover, we’ ve kept the price close to the costs of production.D. I should have thought my offer was reasonable. 再说，这已经把价格压到生产费用的边缘了。

A．
B．
C．
D．

A．to get a visa is a new requirement for American citizens visiting other countries
B．it’ s easier for American citizens to get a visa from a foreign country than at home
C．requirements for American citizens going abroad are not always fixed
D．American citizens usually have difficulty getting a passport