“You need to stay calm now. The plane is just hitting some turbulence.”
What is “turbulence” in this sentence?
A. violent and uneven movement within a particular area of air
B. the hard, solid substance found in the ground that is often used for building
C. a substance in a form like air that is neither solid nor liquid
D. the mixture of gases that surrounds the earth and that we breathe

Random Topics:
Modals in the Past - Speculation and DeductionGrammar : Structural Common ErrorsMixed ConditionalModals AuxiliaryPresent Perfect or Past SimplePast Perfect SimpleDependent PrepositionsPresent Perfect Simple and ContinuousPassive VoicesModal Verbs of Certainty and PossibilityOther quiz:
Grammar › ViewI slept two hours on the train. I don’t know where I am. Excuse me, I am in Barcelona, _________
A. am I?
B. don’t I?
C. won’t I?
D. aren’t I
Sentence Types › View
While I enjoy classical music, I prefer rock and roll because I play the drums.
A. Simple
B. Compound
C. Complex
D. Compound-Complex
Grammar Phrases › View. “This quiz is harder than the others.” The adjective “harder” is___
A. superlative
B. comparative
Prepositions & Modal Verbs › View
You____________be over 18 to ride a motorbike.
A. would
B. must
C. could
D. mustn’t
