[ Grammar ]
What is the purpose of helping verbs?
A. To show you show the sentence is about.
B. To show an action.
C. To link the main verb to the subject.
D. Nothing.

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Adverbial Clause of ConcessionVocabulary, Adjective & PrepositionPresent Tense vs Past TenseAdjectives-Comparison, SuperlativePresent Simple TenseGrammar SuffixesCoordinating ConjunctionsPast Simple, Past Continuous, Past Perfect, Past Perfect ContinuousQuestion tag and + - AgreementTenses and QuestionsOther quiz:
Present Perfect Tense › ViewMy cousin has _______ some cookies.
A. make
B. making
C. made
D. been make
Narrative Tenses › View
when she _____a tunnel.
A. entered
B. had entered
C. is entering
Relative Pronouns › ViewThe film ____ we saw last week won three awards.
A. when
B. who
C. whose
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Some vs. Any › View
Did you buy _____ books?
… … a.some
… b.none
… c.any
