[ Grammar ]
John is interested …………………..the history of Vietnam.
A. in
B. on
C. at

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Modal Verbs & Time PrepositionsMaritime Vocabulary and GrammarPassive SentencesComparatives, Superlatives & EquativesModals and Present TensesGrammar - could / could notPrepositions of Time, Place, and MovementAdverbs of frequencyPassive Voice, Question Tag, PrepositionsAdjectivesOther quiz:
Homophones › ViewI think the New York Giants are a better football team ______ the New England Patriots.
A. Than
B. Then
Tenses › View
For singular subjects we use:
A. were
B. was
Tenses › ViewA: What ____ of the new simplified tax law?
B: It’s more confusing than the old one.
A. are you thinking
B. do you think
C. have you thought
D. have you been thinking
Grammar › View
singular means:
A. one
B. two or more
