[ 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:
Zero ConditionalSubject, Verb & Object ComplementScience

Next quiz: Lend vs. Borrow

She … the ladder from her neighbor.

  1. lent
  2. borrowed


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