[ Idioms ]
To become unconscious is to ___.
a. go out
b. black out
c. knock over

Random Topics:
Third ConditionalConjunctivesArticle & PrepositionIndependent/Dependent Clauses & Relative ClausesAdjectives or AdverbsIndependent ClausesGrammar - TOEICPast ParticipleNo Excuse Words / Conjunction SOSimple Present and Past TensesOther quiz:
Past Tenses › View… your friends … you with your project last week?
A. Have … helped
B. Has … helped
C. Did … helped
D. Did … help
Vocabulary and Grammar › View
__________twice before saying something that could upset her.
A. Consider
B. Decide
C. Think