2. Public transport will be used when travelling long distances by students in my school.

3. The lights will be turned off when leaving a room or going to bed.

4. A great deal of energy will be offered by wind power next century.

5. Sources of energy will be used more effectively for our future.

6. The use of biogas will be increased for cooking by people in the countryside.

- $Answered_{}$ $by_{}$ $thieukhue_{}$ -

1, Less electricity will be used by us in the future

2, Public transport will be used when travelling long distances by students in my school

3, The lights will be turned off by me when leaving a room or going to bed

4, A great deal of energy will be offered by wind power next century

5, Sources of energy will be used more effectively for our future

6, The use of biogas will be increased for cooking in the countryside