[ Mixed General Quiz ]
The Ohio River is one of the most important rivers ___ the United States.
a. on
b. at
c. in

Random Topics:
Present Continous TensePresent Perfect & Past Simple TenseParts of Speech and GrammarPast Tense, Recount Text, and Future TenseTo Infinitive or GerundPossessive Adjectives & Possessive PronounsGerund and InfinitiveGrammar - Present Perfect TenseOpinion / AgreementVerb & GrammarOther quiz:
Phrasal Verb › ViewIf I can get ________ all my homework assignment, I’ll go to the cinema.
A. on well
B. through
C. of
D. away
Vocabulary › View
What is the primary function of a hydrant?
A. To generate electricity
B. To record historical events
C. To provide water access
D. To synchronize activities
Modal Verbs › ViewYou ___ eat more vegetables.
A. could
B. would
C. Should
Mixed General Quiz › View
Sir Edmund Hillary, one ___ the first men to climb Mount Everest, was a New Zealander who trained first in the New Zealand Alps.
a. (nothing)
b. an
c. of
