[ Tenses ]
A successful researcher always … credible sources to support their arguments.
A. cite
B. cites
C. cited
D. is citing
E. will cite
Select your answer:

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Perfect Tenses and VocabularyConjunctive AdverbAdjectives with PrepositionSimple Present Negative and QuestionRun-On SentencesAdjective + to + VerbRelative Clauses PronounsIrregular verbsGrammar and Sentence CorrectionDemonstrative SpeechOther quiz:
Vocabulary › ViewWhat is the business district known for?
A. Shopping malls
B. Residential buildings
C. Offices
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I know I will be successful.
A. noun
B. verb
C. adjective
