[ 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:
Grammar › ViewIt is spring now, ………. the birds are singing.
A. Because
B. For
C. Unless
Modal Auxiliaries › View
My brother _______ eyeglasses. He can´t see well.
A. have to wear
B. has to wear
C. don´t have to wear
D. doesn´t has to wear
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