$ANSWER:$

II.

1. Public transports will be used to go to school by students.

2. A great deal of electricity will be generated by solar power this summer.

3. Will the solar panels be installed on the roof of the house tomorrow?

4. Plants won't be burned to heat by local people this winter.

5. The air will be pollted by the smoke from factories.

6. The hydro power station will be built in this area.

III. 

1. will be studying

2.  Will you be waiting

3. will be having

4. will wear.

5.   will send

6. will be arriving

7. will be lying

8. will be working

9. will be meeting

10. will be playing

IV.

1. economically

2. renewable

3. alternative

4. electricity

5. power

6. environment

7. transportation

8. heat

9. producting

10. shortage