IN A FEW YEARS’ TIME, OUR HOUSES WILL BE HEATED BY _________ ENERGY...
9. In a few years’ time, our houses will be heated by _________ energy.
A. nuclear
B. solar
C. coal
D. natural
9. In a few years’ time, our houses will be heated by _________ energy.
A. nuclear
B. solar
C. coal
D. natural