Generally, you apply for an American undergraduate course before the last semester of senior three, 10, so you need to get the TOEFL and SAT before senior three, 10. You can use the usual weekends or winter and summer vacations to train TOEFL or SAT.

Maintain an average score.

When applying for undergraduate courses in American universities, you also need to show your transcripts from high school, at least 3.0, that is, you need to maintain the level of 80 points or above in all subjects.

Take part in more extracurricular activities.

Participate in extracurricular activities, besides grades, students' background is also very important.