话题：
在我们的生活或工作中请假是常有的事情，根据请假的原因，一般分为请病假和请事假两种。今天小编为大家推荐一篇关于“请假条”的作文模板，供大家学习。
要求：假设你是Tony，是英语一班二年级学生，因有事不能上外教Ms. Riddle 的课，给她写一张请假条，说明你不能来上课的原因。
Directions: For this part, you are allowed 30 minutes to write a letter. You should write at least 120 words according to the outline given below in Chinese:
参考模板：
October 8, 2017
Dear Ms. Riddle,
I would like to know if I could ask for a casual leave of absence from your Oral English class this Thursday morning.
Yesterday afternoon I got a phone call from my cousin, who is now operating a small company in suburbs of this city. He needs an interpreter for two days but cannot find the most trustworthy person, so he wants me to make an attempt. It seems to me that this is a golden opportunity to put what I have learned in your class into practice, but I need your permission of absence. If you think I may go and help him overcome the difficulty, I am confident that I’ll do a good job and both of us will be thankful.
Earnestly yours,
Tony