complate the centences using the future perfect or future continuous.
1) people (use) solar energy extensively
2) people (use) up all natural resources of oil
3) people (travel) into space on a regular basis
4) people (eat) only genetically engineered food
5) traditional farm (disappear)
6) many new galaxies (discover)
7) Mars and Venus (investigate) and (describe) in detail
8) scientist (study) chances of people setting down in other galaxies

1) people (will be using) solar energy extensively
2) people (will have used) up all natural resources of oil
3) people (will be travelling) into space on a regular basis
4) people (will be eating) only genetically engineered food
5) traditional farms (will have disappeared)
6) many new galaxies (will have been discovered)
7) Mars and Venus (will have been investigated) and (described) in detail
8) scientist (will be studying) chances of people setting down in other galaxies