[ Grammar ]
Anne promised ……………………….. (help) her sister with her homework.
A. to help
B. helped
C. to helping
D. helping

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Grammar Comma UsagePast Tense and Past ContinuousPossessive PronounsMix-TensesPresent Perfect Simple vs ContinuousTo Infinitive or GerundPresent and Future TensesModals of ObligationSimple Present vs Present ProgresiveAdjective, Adverb, and Noun FormsOther quiz:
Modal Verbs and Conjuctions › ViewWe got a new president _______ the election.
A. afterwards
B. before
C. because
D. after
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Van _______ her Vietnamese to be able to pass this exam.
A. must improve
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C. might improve
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A. travel
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Phrase or Clause › View
Carl Sandburg has many expressions.
A. Phrase
B. Dependent Clause
C. Independent Clause
