PART 3. Fill in the gaps with the words from the box (Vocabulary) nanorobots solar energy video-conferencing. virtual reality. controversial. predict. textbooks personality 1. are tiny machines that can travel through our bodies and repair damage. -3-4 2. Students will communicate with teachers and students all over the world by 3. In the future, there probably won't be paper or in classrooms. -3-4 4. Students will visit the Arctic Tundra or the Louvre in France using the Internet and -3-4 5. More and more cars will probably use instead of petrol. -3-4 6. Using medicines to control people's and emotions is very 7. Scientists try to earthquakes, but it is still difficult.