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Have a conversation with a fellow classmate to practice your English. Read an article or book or watch a film or video beforehand. When you meet, you tell your classmate what the article/book/film/video was about. After you told them the subject and the content, they can ask you questions about it. Afterwards, switch roles so the other one tells about their article/book/film/video and you ask them questions.

Try do repeat this routine on a regular basis. Having normal conversations about different subjects will help you to become more fluent in conversations and will make speaking English become more natural.