not, speak, everybody, space, stations, enough, won't, different, pollution, vegetables, know, same | Maybe there will not be 1 room for everybody on the earth in 100 years. People will live in 2 3 on the moon. They will grow 4 there. Maybe people will still use cars. However,the cars 5 use petrol(汽油) any longer. Maybe there will be people in 6 be any air 7 . Maybe people in 8 countries will 9 the same language. Then they will 10 better. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. |