[ Preposition & Gerund ]
Brian really has to work on _______ his vocabulary.
A. improve
B. improved
C. improving
D. improves

Random Topics:
Commas and Subordinating ConjunctionsPrepositions of Place & TimePronouns, Verb, ConjunctionGrammar Like & Linking VerbPresent Simple & Present Progressive TenseConditional Sentence 0, 1Sentence Structure and ConjunctionsSuffixes (ing-ed) SentencesInfinitive and GerundsGerund, Infinitive & ModalsOther quiz:
Vocabulary › Viewhaving bloodshed and violence
A. treaties
B. gory
C. wage
D. vain
Verb Tense › View
Is the verb tense past perfect, present perfect or future perfect? ‘The astronomer has observed the comet through the telescope.’
A. Past perfect
B. Present perfect
C. Future perfect
D. Simple past
Tenses › ViewWe always _____________ food to school.
A. bring
B. brings
C. brought
Vocabulary › View
sellers or merchants
A. vital
B. vendors
C. woebegones
D. worthy
