What may happen in the future?Do you think people will still
What may happen in the future?Do you think people will still use cars?I think so.But cars won't use petrol.They won't pollute the air,e___.Every family has one or more cars.They'll be not as e___ as they are now.It'll be convenient to travel.Students will not have to go to school.They can learn b___ watching TV.