Dear Tim
How are you doing recently? I want to invite you to join a summer camp which held by my school from July fifteenth to August twelfth and all of the foreign students like you are wellcom to join in. Here are some details, we are going to learn Chinese mandarin, English and traditional Chinese painting in every forenoon. In addition, we will participate in a lecture of Chinese culture and convention. Furthermore, during the weekend, the whole team will be guided to travel around the city. Do you have interest about this summer camp? Please reply me as soon as posible.
Yours
Li Hua