Topics: Tenses Usage
Before renewable energy became affordable, most industries _____ on fossil fuels.
A. relies
B. relied
C. had relied
D. rely
Select your answer:
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Vocabulary › Viewto keep a person or an item safe from harm or illness
A. infect
B. protect
C. symptom
D. vaccine
Pronoun › View
The faster I walked, the more water spilled out of the bucket, and _______ became a real nuisance.
A. It
B. The walk
C. The water spill