Select your answer:

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Modal Auxiliary VerbsSynonymsVocabulary Spelling GrammarAdjectives and AdverbsConjunctions and ClausesPast Modals & Phrasal Modals of ObbligationDependent PrepositionGrammar (Possessive Pronouns)Passive and Active SentencesRegular Plural NounsOther quiz:
Grammar & Vocabulary › ViewOur parents have been married _______ fifteen years.
A. since
B. for
Perfect Tense › View
Choose the correct form of ‘have’ or ‘has’ in the perfect tense: They ____ arrived at the airport.
A. having
B. have
C. had
D. has
