Dear
classmates！
If you need high school online course materials, please contact me. I will provide you with all online course learning materials for three years, as well as questions and answers of mathematics, physics and chemistry. This is a service that the vast majority of peers can not provide. Please trust me and I will not disappoint you . Of course, there is no free lunch in the world . As an online course provider, it will charge a certain service fee . they are the words you must learn in high school English, and it is also my test for you . If you can understand it , I believe you can make the most correct choice.
yours，
online course provider
My contact information:
Please send me a private message
由于中文会遇见神秘力量，dddd。