Change the sentences into the passive voice:
We will use sources of energy more effectively for our future.
Sources of energy
They will use low energy light bulbs.
Low energy light bulbs….......
Wind power will offer a great deal of energy next century.
A great deal of energy.
They will build a hydro power station in the North of the country next decade.
We will solve the problem of energy shortage by using solar energy.
The problem of energy shortage