“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:
Modal Verbs › ViewChoose the correct modal verb to complete the sentence: You _______ eat all your vegetables.
A. can
B. should
C. will
D. must
Verb Patterns › View
Could you remind us…..(prepare) the presentation for biology?
A. to prepare
B. prepare
C. preparing
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
