[ Prepositions ]
Long Vu forgot his homework _________ mistake.
A. at
B. on
C. by

Random Topics:
Prepositions of MovementPast Perfect Simple TenseGerunds and TensesWh- Questions Present Simple TenseGrammar - Present Perfect with already, just, yetModals - Have to or ShouldGrammar, Conditional Sentences, VocabularyTransitional WordsTOEIC GrammarGrammar - Collective NounsOther quiz:
Grammar › ViewShe’s … intelligent girl in the class.
A. most
B. the most
C. more
Grammar › View
There seems to be …… new elephant in the zoo.
A. a
B. an
C. any
D. much
