[ Mixed General Quiz ]
Did you know that 95 percent ___ the world’s opals are mined in Australia?
a. on
b. at
c. of
Select your answer:

Random Topics:
Unscramble SentenceModals and Adjectives (ed-ing)Passive Voice - Present TensesVocabulary and DefinitionsTOEFL GrammarPronouns, Verb, ConjunctionPerfect TenseAlong & AgainstPronouns, Sentence Structure, and ApostrophesCountable & Uncountable NounsOther quiz:
Grammar › ViewWhat color are his socks?
A. It’s yellow.
B. They’re purple.
C. They’re yellow.
Grammar › View
I ______________go to the party last night because I was sick.
A. can
B. can’t
C. could
D. couldn’t
