[ Passive Voice ]
Since then, many people buy a lot of mobile phones. A lot of mobile phones…
A. is bought.
B. are bought.
C. are buy.
D. was buy.

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Action VerbEmployment VocabularyIntermediate GrammarFrequencyGrammar - either...or, neither...norPresent Perfect and Present Perfect ContinuousPronouns and AdverbsPresent and Future TensesPresent Perfect Simple vs ContinuousHave vs. HasOther quiz:
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A. should have go
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Is this actor on, under or behind to the couch?
A. The actor is behind the couch.
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Subject Verb Agreement › View
A third of the students _____ passed the test.
A. are
B. have
C. has
D. is