[ 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:
Pronouns › ViewI went shopping yesterday, but I couldn’t find _____ that I liked.
A. someone
B. anything
C. nothing
D. everything
Vocabulary & Grammar › View
The …….. wilderness of Alaska is perfect because it hasn’t been touched by mankind yet.
A. unspoilt
B. secluded
C. remote
D. isolated
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