[ Verb Agreement ]
The flock of birds (is/are) flying south for the winter.
A. is
B. are

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Identifying TensesIf ClausesPast Simple - Present PerfectGrammar - Imperatives and LetGrammar - Present Perfect TenseQuestion tag and + - AgreementPast Simple and Past ContinuousAdjectives and ArticlesInfinitives and ING FormsGrammar : Must (Necessity)Other quiz:
Grammar › ViewA box ______________ round.
A. am not
B. are not
C. is not
Vocabulary & Grammar › View
Due to rapid population growth, urban residents now ___ those in rural areas.
A. outnumber
B. outdo
C. outweigh
D. oversee