To achieve a score of 140 in the high school English exam, you need to focus on several key areas:

1. Vocabulary: Build a strong vocabulary by regularly studying new words and their meanings, usage, and pronunciation. Use flashcards or an app to help you memorize them.

3. Reading Comprehension: Improve your reading skills by reading a variety of texts, such as novels, essays, and news articles. Pay attention to context clues to better understand unfamiliar words and phrases.

4. Writing: Practice writing different types of compositions, such as narratives, arguments, and descriptions. Learn to organize your thoughts clearly and express them effectively. Get feedback from teachers or peers to identify areas for improvement.

By focusing on these areas and consistently practicing, you can significantly improve your English skills and aim for a 140 on your high school English exam.