Planes will be very large so flying will be very cheap. Fuel will be e______ (1).
Everyone will have a small car. It will be hot all year so the winter will be very short. 
    It will get warn at the North Pole so the sea will be very r______ (2). The weather
will be b______ (3) in spring and autumn. There will be heavy rain and strong w______
(4). In the f______ (5), our homes will be very comfortable because we will use the
sun to h______ (6) our homes. No one will be cold and there will be lots of hot water.
    We will have robots in our homes to do many d______ (7) jobs. Robots will clean the
house, cook food, care f______ (8) children and help old people. Machine will do many
jobs on farms and in factories and offices, so no one will do h______ (9) work. People
will work three days a w______ (10). So, they will have long holidays and lots of free
time.