Topic 1: Space TravelI believe space travel will become a reality in the future. Although there are many technological and cost challenges currently, continuous advancements in science and engineering are gradually bridging the gap. Private companies are investing heavily in this field, promising commercial flights and deeper exploration. However, space travel still remains a distant dream for most people due to the enormous costs and potential risks.

Topic 1: Space TravelI believe space travel will become a reality in the future. Although there are many technological and cost challenges currently, continuous advancements in science and engineering are gradually bridging the gap. Private companies are investing heavily in this field, promising commercial flights and deeper exploration. However, space travel still remains a distant dream for most people due to the enormous costs and potential risks.

Topic 1: Space TravelI believe space travel will become a reality in the future. Although there are many technological and cost challenges currently, continuous advancements in science and engineering are gradually bridging the gap. Private companies are investing heavily in this field, promising commercial flights and deeper exploration. However, space travel still remains a distant dream for most people due to the enormous costs and potential risks.Topic 2: Video CallsVideo calls offer many benefits, such as connecting people regardless of distance, helping to maintain personal relationships, and enabling efficient work collaborations. They save time and travel expenses. However, video calls also have disadvantages. The lack of direct interaction can reduce connection and engagement, and technical issues like poor internet connection or faulty equipment can cause disruptions. Additionally, staring at a screen for too long can lead to eye strain and stress.         

Topic 1: Space TravelI believe space travel will become a reality in the future. Although there are many technological and cost challenges currently, continuous advancements in science and engineering are gradually bridging the gap. Private companies are investing heavily in this field, promising commercial flights and deeper exploration. However, space travel still remains a distant dream for most people due to the enormous costs and potential risks.Topic 2: Video CallsVideo calls offer many benefits, such as connecting people regardless of distance, helping to maintain personal relationships, and enabling efficient work collaborations. They save time and travel expenses. However, video calls also have disadvantages. The lack of direct interaction can reduce connection and engagement, and technical issues like poor internet connection or faulty equipment can cause disruptions. Additionally, staring at a screen for too long can lead to eye strain and stress.Topic 3: Robot TeachersRobot teachers can offer benefits in terms of consistency and access to knowledge. They can provide lessons 24/7, never get tired, and can personalize learning paths for each student based on data. However, the lack of emotion and empathy is a significant drawback. Robot teachers cannot inspire, motivate, or handle complex social situations in the classroom. The student-teacher relationship, which is crucial for holistic development, would be negatively impacted.

Topic 1: Space TravelI believe space travel will become a reality in the future. Although there are many technological and cost challenges currently, continuous advancements in science and engineering are gradually bridging the gap. Private companies are investing heavily in this field, promising commercial flights and deeper exploration. However, space travel still remains a distant dream for most people due to the enormous costs and potential risks.Topic 2: Video CallsVideo calls offer many benefits, such as connecting people regardless of distance, helping to maintain personal relationships, and enabling efficient work collaborations. They save time and travel expenses. However, video calls also have disadvantages. The lack of direct interaction can reduce connection and engagement, and technical issues like poor internet connection or faulty equipment can cause disruptions. Additionally, staring at a screen for too long can lead to eye strain and stress.Topic 3: Robot TeachersRobot teachers can offer benefits in terms of consistency and access to knowledge. They can provide lessons 24/7, never get tired, and can personalize learning paths for each student based on data. However, the lack of emotion and empathy is a significant drawback. Robot teachers cannot inspire, motivate, or handle complex social situations in the classroom. The student-teacher relationship, which is crucial for holistic development, would be negatively impacted.

Marcus wanted to know how many people would come the day after.People will communicate with each other using telepathy in 50 years' time.

1Janet told him that he could leave his bags there for a few minutes. 2 My dad asked me where I was going with my friends the following week. 3 It took my brother an hour to fix my broken webcam.