[ Tenses ]
They ___________________ in Chicago for 20 years (be).
A. has been
B. are
C. have been
D. will being

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Relative Clauses and Past PerfectVerbs � Nouns � Adjectives - AdverbsComparisionAdjectives (-ed / -ing)Infinitive FormsFuture Perfect ContinuousGrammar - Present and Past PassiveVocabulary & GrammarAdverbs and Time ExpressionsCountable QuantifiersOther quiz:
Grammar › ViewThe shop ____ sells vintage clothes is located on Main Street.
A. which
B. who
C. whose
Grammar › View
The family _______ a lot of pets.
A. has
B. have
C. is
D. are