[ Tenses Usage ]
Before renewable energy became affordable, most industries _____ on fossil fuels.
A. relies
B. relied
C. had relied
D. rely
Select your answer:

Random Topics:
Miscellaneous Grammar UsagesModal Verbs in ConditionalsDefinite & Indefinite Pronoun & ConditionalsModal Verbs of ObligationIndefinite ArticleTenses and ArticlesAbilityPerfect TensePronouns and Subject Verb AgreementPast ModalsOther quiz:
Grammar › View“I don’t like fast food.”
A. He said that he doesn’t like fast food.
B. He said that he didn’t like fast food.
C. He said that he don’t like fast food.
D. He said that he hadn’t liked fast food.
Grammar › View
The city wants to create (many) parks than it currently has.
A. more
B. most
