[ Modal Verbs ]
Van _______ her Vietnamese to be able to pass this exam.
A. must improve
B. could improve
C. might improve

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Grammar and Sentence CorrectionComparatives and SuperlativesParts of Speech and Compound SentencesGrammar - SimilesPhrases & ClausesAdjectives and AdverbsFood VocabularyModals VerbsQuantifies and Modals of DeductionGerund after Prepositions and Certain VerbsOther quiz:
Grammar › ViewBrian was ___ to play the piano for us although he didn’t really want to.
A. persuaded
B. persuasive
C. persuading
D. persuasion
Tenses › View
What does tense in a sentence express?
A. The complexity of the verb
B. The form a verb takes to express time
C. The number of subjects in a sentence
D. The length of the sentence