Question:
In a few years’ time, our houses will be _________ by solar energy.
-
A.
replace -
B.
installed -
C.
heated -
D.
conserved
Reference explanation:
Correct answer:
The house will be heated by solar energy => verb in the passive: be + past participle.
At the same time, “heat” is the verb form of “hot” which means “to heat up”.
The houses will be heated by solar energy.
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