In my opinion, I do not believe that robots will ever completely replace teachers at school. Although robots can store a vast amount of information and work tirelessly, they lack human emotions and empathy. Education is not just about delivering facts; it is also about inspiring and understanding students. A teacher can provide emotional support and moral guidance, which a machine cannot do. Therefore, while robots might become helpful assistants in the classroom, the human connection between teachers and students will always be irreplaceable.

Video calling is a popular way of modern communication today. It allows people to see and hear each other in real time through apps like Zalo or Zoom. One major advantage is that it makes long-distance conversations feel more personal and intimate. However, a disadvantage is that it requires a stable internet connection and can be tiring after long hours. In the future, I believe people will use it even more, perhaps with 3D holograms, to connect with friends and family worldwide.