[ Present Tenses ]
You look tired, obviously you ___ (work) all day.
A. work
B. are working
C. have worked
D. have been working
Select your answer:

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Modal Verbs of Certainty and PossibilityNoun Verb AgreementAuxiliary and Modal VerbsComparative AdverbPresent Forms and Narrative TensesPast and Future TensesLet & Be allowed toComparatives - SuperlativesPresent/Future/Past Simple/Present PerfectPast and Present Continuous tenseOther quiz:
Grammar › ViewShe was painting a picture when her mother was making a cake.
A. was painting
B. when
C. was making
D. cake
Grammar › View
Choose the correct positive statement:
A. She has finished her homework already.
B. She has finished her homework yet.
