Life in the twenty-first century will be very   1  . Many changes will take place, but   2   will the changes be.

The population is growing   3  . There will be many   4   in the world and most of them will live   5   than people in the twentieth century.

Computers will be much smaller and   6   and there will be at least one in every   7  . And   8   studies will be one of the important subjects in school then.