One possible version: Dear Mr. Green. How are you? Do you still remember me?My name is Li Hua. whom you taught oral English when I was in Senior 1. Now our school asks me to invite you to come to our school to be an oral English teacher for the English Summer Camp during the summer vacation. Here are some details about the activity.The camp will start from July 15 to August 15, 2011. You can come a few days before July 15, 2011. In the morning you will give three oral English classes so you are expected to get ready for different topics to communicate with the students. In the afternoon there are mainly outdoor activity such as having some picnics and visiting parks and museums, etc. You can also take the chance totravel more in China.I hope you will accept the invitation and have a happy summer holiday. Yours sincerely Li Hua |