To achieve a score of 120 on your English exam in junior high school, you can follow these steps:

1. Master Vocabulary: Regularly study and remember new words to improve your understanding of texts and ability to communicate effectively.

3. Improve Grammar: Focus on the fundamentals of English grammar, such as tenses, pronouns, and sentence structure. Practice by doing exercises and using resources like grammar books or online tutorials.

4. Enhance Listening Skills: Listen to English audio materials like podcasts, songs, or movies with subtitles to improve your listening comprehension and pick up new vocabulary and phrases.

6. Prepare for Exams: Review past exams, practice questions, and sample tests to familiarize yourself with the format and types of questions you're likely to encounter on test day.

By consistently working on these areas and staying motivated, you can improve your English skills and aim for a 120 on your exam. Remember, practice makes perfect!