Up until the mid-18th century, humans only _____ energies that ...

[ Grammar ]

Up until the mid-18th century, humans only _____ energies that were available on the surface of the earth such as wood and wind.

A. produced

B. depleted

C. exploited

D. promoted

Select your answer:
A B C D E

Other quiz:

Adverbs › View

Identify the adverb of frequency in this sentence: They always go for a walk in the evening.

A. sometimes

B. rarely

C. always

D. often

Grammar - Present Perfect Tense › View

I (meet) ______________ a lot of people in the last few days.

A. met

B. am meeting

C. have met

D. have meet