To improve your English grades in junior high school, follow these steps:

1. Focus on vocabulary: Memorize new words daily and use flashcards or an app to help you.

3. Read English materials: Read books, articles, or stories to improve your reading comprehension and expand your vocabulary.

4. Listen and speak: Immerse yourself in English-speaking environments, such as watching English movies or joining language exchange groups.

6. Seek help: If needed, consider hiring a tutor or joining an English learning course for extra support.

7. Stay consistent: Make learning English a habit and dedicate time each day to practice.

By following these tips, you can gradually improve your English skills and achieve better grades in junior high school.