9. Complete the sentences. Use what you think might be the consequences of these situations. 50 years from now ... 1 If scientists invent cars that run without petrol,... 2 If time travel becomes possible,... 3 If there are 10 billion people on earth,... 4 If computers can speak all languages,... 5 If people can fly to Mars in 24 hours,...
1. The Earth will no longer be that sick anymore. 2. Than the humanity will go extra with it. 3. The desires of food will be limited. 4. Everyone will be able to have one, without straggling. 5. Everyone will go to Mars.
