I __________ this report since nine o’clock last night. ...

[ Present Perfect Continuous Tense ]

I __________ this report since nine o’clock last night.

A. has been worked

B. has been working

C. have been worked

D. have been working

Select your answer:

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Grammar - Connectors Future Plans Grammar-Verbs & Nouns Singular, Plural, Gender Pronoun Antecedent Agreement Present Perfect Continuous Degrees of Adjectives Present Perfect and Present Perfect Continuous Adverbs Present Simple & Present Continuous Tenses

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