[ Vocabulary ]
energy that comes from extreme heat within Earth
A. solar energy
B. wind energy
C. geothermal energy
D. biomass
E. hydropower energy
Select your answer:
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Grammar › ViewThe manager ______ very happy, if Peter signs the agreement.
A. will be
B. would be
C. was
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Haven’t you finished your homework since/yet?
A. since
B. yet