[ Present Perfect Tense ]
They _______ a lot for their exam.
A. has studied
B. studied
C. have studied

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Gerund/ To Verb/ Verbduring, for, whileTenses - Present and PastTo Infinitive/Bare Infinitive/GerundsTime ConjunctionsUnreal ConditionalsTenses and Word FormationSentences Function and StructureAdjectives & PrepositionComparatives, Superlatives & EquativesOther quiz:
Grammar: Syntax › ViewWhere accent looks at the distinctive pronunciation features of speakers, ______ looks at the distinctive grammar, syntax and vocabulary that marks a speaker’s regional, personal or social identity.
A. subject
B. predicate
C. dialect
D. phrase
Grammar › View
There ____ many difficulties regarding the situation.
A. should
B. was
C. were
D. is
Grammar › ViewLeonardo really wants to fit in, ________________ he sometimes acts like his peers.
A. or
B. but
C. so
Subject Verb Agreement › View
The committee ____ decided to postpone the event.
A. has
B. have
C. is
D. are
