[ Grammar ]
What is the simple subject in this sentence: “Birds fly south.”
A. south
B. fly
C. Birds
D. fly south

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Grammar - may & mightPast Perfect Tense and Past TenseModal AuxiliarySubordination ConjunctionsPrepositionsWill vs Verb InfinitivesInfinitive or GerundInfinitive FormsGrammar ClausesGrammar & ReadingOther quiz:
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A. some
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She ______ to school every week.
A. go
B. going
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