[ Past Narrative Tenses ]
I _____ (work) on this report all morning and I’m still working on it.
A. worked
B. have worked
C. have been working
D. had been working

Random Topics:
Verb, Object, PrepositionPresent PerfectTenses & PassiveAdverbial Clause, Noun ClauseGrammar - Present PerfectNouns, Pronouns, Antecedents, and Singular and PluralActive & PassiveVocabulary and IdiomsPossessive NounsSubject-Verb AgreementOther quiz:
Modals › ViewI was late for class last Thursday because … start my car.
A. I couldn’t
B. I can’t
C. I could
Conditional Sentences › View
The box _______ if you stand on it.
A. breaks
B. will break
C. break
D. broke
Kinds of Nouns › ViewThomas Alva Edison
A. Common Noun
B. Proper Noun
C. Collective Noun
D. Abstract Noun
Present Tenses › View
Carol and I are old friends. I _____ her since we studied in high school together.
A. have been knowing
B. have known
C. know
D. are knowing
