尊敬的先生/小姐，

在上述地址，我们想请贵公司参加于八月二十九日到九月四日举办的2000国际商品交易会，关于交易会的详情我们一周内将寄给你。希望不久能收到你的来信，并能来参加。

您诚挚的

肯定答复

Dear Mr. / Ms,

Thank you for your letter of June 28 inviting our corporation to participate in the 2000 International Fair. We are very pleased to accept and will plan to display our electrical appliances as we did in previous years.

Mr. Li will be in your city from July 2 to 7 to make specific arrangements and would very much appreciate your assistance.

Yours faithfully

尊敬的先生/小姐，

感谢六月二十八日来信邀请我们公司参加2000国际商品交易会。我们乐于参加并计划展示我们前几年生产的电子设备。李先生将于七月二日至七日去你市做具体安排，非常感谢你的协助。

你诚挚的

否定的答复

Dear Mr. / Ms,

Thank you very much for your invitation to attend the 2000 International Fair. As we are going to open a repair shop in your city at that time, we are sorry that we shall not be able to come.