Ever wondered what we're 1)... to do when the energy resources we use today 2)... out? Will we 3)... living in the same sort of houses we live in today when that 4)... ?
These environmentally-friendly homes 5)... be able to heat and cool themselves.
For instance, instead of a traditional roof, eco-homes will 6)... a layer of soil protecting the house from cold winter and hot summer temperatures.
In an eco-home, we will also be able to 7)... water, which will mean 8)... down on the amount of water we use.
Sounds like fantasy, 9)... it?
Perhaps in 20 years' time you 10)... in one!