[ Subject Verb Agreement ]
A series of bank robberies ______ occurred during the past several months.
A. have
B. has
Select your answer:

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Grammar and IdiomsPrepositions of Place & TimeNarrative Tenses & ConditionalsSimple Past Tense and Past Perfect TenseFuture - Will and Be going toConditional Sentence Type 0-3Time PhrasesModal Verbs and AdviceNoun, Quantifiers and SuffixesGrammar ClausesOther quiz:
Tenses › ViewWhat is the present continuous form of the verb “to write”?
A. I am writing.
B. I write.
C. I wrote.
D. I will write.
Phrasal Verbs and Grammar › View
He was supposed to meet us at 5.
A. He had a future obligation
B. He refused to go
C. He changed his mind
D. He arrived early
