Réponse :
Voici les réponses:
Ex1:
a. Instead of using fossil fuels, the sun's rays provide electricity.
b. A building provides its own power without taking electricity from the power station.
c. Windows cannot generate electricity without having the right technology.
d. Solar cells on windows capture just infrared and ultraviolet lights instead of visible light.
Ex2:
a. The new elevators will be excellent for expanding possibilities in construction design.
b. They work with using the latest maglev technology.
c. They were finally successful after failing many initial trials.
d. Architects are fed up with designing conventional tall buildings.
Explications :
