[ Tenses ]
I’m tired. I _____ the house since 9 this morning.
A. am cleaning
B. was cleaning
C. had been cleaning
D. have been cleaning
Select your answer:
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Gerunds as objects of prepositionPreposition of DirectionPast Future TensesAdverb of MannersPronouns and Subject Verb AgreementAdverbs & to beModal Verbs for PossibilityClauseInterjection & Prepositional PhrasesModal Verbs in ConditionalsOther quiz:
Pronoun › ViewThe students and me / I / we saw dinosaur fossils at the museum.
A. me
B. I
C. we
Linking Verb › View
He was one of the best participants in the group.
- linking verb
- auxiliary verb