[ Grammar ]
Copyrighted material is generally the property of the author and cannot to be duplicated by others for profit. Which one is incorrect word/phrase?
A. cannot
B. to
C. be duplicated
D. by

Random Topics:
Definite, Indefinite and Zero ArticlesModal PossibilitiesCoordinating and Subordinating ConjunctionsTenseTenses & AffixesVerbal CommunicationAdverb ClausesPresent and Past TensePassive SentencesSubordinate ConjunctionsOther quiz:
Present Continuous Tense › ViewJono ……… his kite now. He is at school.
A. Isn’t flying
B. Aren’t flying
C. Doesn’t fly
D. Don’t fly
Vocabulary › View
Deforestation and poaching are two things which harm the ____ balance in nature.
A. currency
B. ecological
C. resource
D. service