Joozone's Directions: For this part, you are allowed 30 minutes to write a letter to a friend who will come to your city to see you. You should write at least 120 words following the outline given below in Chinese:
假设你是李明, 你的一个朋友张伟准备到你所在的城市来旅游，但你有事不能接待。写封信给他，解释你不能接待的原因，并说明你所做的安排。
A Letter to a Friend
写给朋友的一封信
Dear Zhang Wei,
亲爱的张伟，
I”m glad to know that you are coming to my city during the summer vacation.更多精彩英语作文 尽在：www.eeeen.com
很高兴听说你暑假要来我所在的城市。
However, I”m afraid there”s some bad news. I”m planning to take part in an international conference to be
