Topics: Preposition & Gerund
Brian really has to work on _______ his vocabulary.
A. improve
B. improved
C. improving
D. improves
Select your answer:

Random Topics:
ApologizingPast Tense & Past Continuous TenseThings in EnglishSubordinating ConjunctionPassive Voice Present Simpletoo / enoughModal ProbabilityPerfect Verb TensesAdverb & Compound SentencesPresent, Past and Future TenseOther quiz:
Article › ViewWhich article should be used before the word ‘elephant’ in this sentence: ‘I saw ___ elephant at the zoo.’
A. some
B. a
C. an
D. the
Modal Verbs and Gender Nouns › View
We ___ see the stars because it was cloudy.
A. could
B. couldn’t
C. was
D. were
