To achieve full marks in English for junior high school, you need to focus on several key areas:

1. Vocabulary: Build a strong foundation by regularly learning and reviewing new words. Use flashcards, mobile apps, or word games to practice.

3. Reading Comprehension: Improve your reading skills by reading English books, articles, and stories. Pay attention to context clues to help you understand unfamiliar words.

4. Listening: Listen to English audio materials, such as podcasts, songs, or movies with subtitles. This will help you improve your listening comprehension and pick up new vocabulary.

6. Writing: Write essays, journals, or letters in English to improve your composition skills. Get feedback from teachers or peers to identify areas for improvement.

By focusing on these areas and practicing consistently, you can gradually improve your English skills and potentially achieve full marks in your exams.