[ Grammar ]
Which sentence uses the correct preposition?
A. She is good in math.
B. She is good at math.
C. She is good on math.
D. She is good by math.

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-ing / InfinitiveVocabulary and TensesSubordinating ConjunctionClauses of ReasonOrdering AdjectivesPronouns, Sentence Structure, and ApostrophesPresent/Future/Past Simple/Present PerfectPast PerfectComparison of Adjectives and AdverbsSimple Present ProgressiveOther quiz:
Grammar › ViewThe students usually……… fifteen minutes before the class starts.
A. to come
B. comes
C. come
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She forgot her hat, but I still have __________.
A. mine
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How many sisters _____________?
A. do you have
B. you have
C. are you have
D. does you have
