(改错)Any additional insurance required by 由e buyer shall be for his own expense.

Write a letter in 130-150 words.写一封推销信，要点如下：(1)产品测试表明，在夏天使用Glux牌空调能够使办公室工作人员的工作效率提高10%；(2)工作人员效率的提高意味着利润的增加，从而使成本能迅速收回；(3)产品的价格十分有竞争力，比市场上的同类产品低5%；(4)可以分期付款，期限为两年；(5)可以电话联系，我们将派技术人员提供安装服务。

This offer shall remain _______ until 10 o'clock, May 5, Beijing time.

According to this market, there are very _______ demands for our products _______ your end.

The information you supplied is the most useful piece we _______ so far.

_______ party shall notify the other party of the ratification by their respective authorities.

The exporter usually sells the products to the people who resells to the _______.

In the very first meeting the question of payment terms was _______.

We would be pleased to receive your _______ catalogue and price list.

For information _______ our _______ we refer you to Bank of China, Shanghai Branch.