Mr. Thomas Wood cannot come to your college for some reason. Write a letter of reply expressing refusal of an invitation. Your letter should include the following points:
1. the gratitude for the invitation
2. the reason for refusal of the invitation
You should write approximately 100 words. Do not sign your own name at the end of your letter. Use "Zhang Ping" instead. You do not need to write the address.
【参考答案】
[参考范文]Dear Mr. Zhang, Thank you very much for your kind invi......