[ Mixed General Quiz ]
Did you know that 95 percent ___ the world’s opals are mined in Australia?
a. on
b. at
c. of
Random Topics:
Conjunctions & InterjectionsGrammar and Sentence StructureSimple Present - Negative & InterrogativeSimple Present & Present ProgressivePresent Perfect Simple vs ContinuousCommon & Proper NounsShould and Shouldn'tAuxiliary ModalGrammar - Be going toRelative Pronouns with PrepositionsOther quiz:
Relative Clauses › ViewThe extent ____the stock market is affected by the day-to-day pronouncements of the President of the United States is astonishing.
A. of which
B. to which
C. whose
D. where
E. when
Grammar › View
Identify the preposition.
Taylor built a tall tower with wooden blocks.
A. built
B. with
C. with wooden blocks
D. a
Grammar › ViewA: What did Grace _____ two hours ago?
B: She washed the car.
A. do
B. does
C. did
D. doing
Mixed General Quiz › View
Siena, is a medium- ___ city in Europe.
a. size
b. proportion
c. measured
d. sized