Countries that can study abroad are generally the United States, Britain, Canada or Australia. Of course, going to Britain and America is also good. But Britain is a bit exclusive, and the tuition is the highest.
If you are a student in this program, you want to study abroad. You can ask the teacher in charge of this project in your school for a book about introducing foreign cooperative schools. When your junior year is about to graduate, foreign schools will have admissions representatives to give you a brief introduction to each school.
First of all, IELTS has to pass. Different schools have different requirements. Usually 5~6. But if the score is low, you will have a language class about a month earlier than other students who go abroad. Furthermore, some schools require you to get a B or above during your schooling in domestic schools before accepting you.
Besides, you should be prepared for high expenses.