To improve your English grades in junior high school, focus on these key areas:

1. Vocabulary: Regularly study new words and phrases to expand your lexicon. Use flashcards or vocabulary apps to practice.

3. Reading Comprehension: Read English articles, stories, and passages to improve your understanding and inferring skills.

4. Listening: Listen to English audio materials such as podcasts, songs, or movies with subtitles to enhance your listening comprehension.

6. Writing: Write essays, summaries, or diary entries to practice expressing your thoughts in English. Get feedback from teachers or peers to identify areas for improvement.

By consistently working on these aspects, you can improve your English grades in junior high school.