[ Verb Tenses ]
We ______ (work) on this project all morning.
A. have worked
B. have been working
Random Topics:
Present Tenses and VocabularyGrammar of Future PlansGerund & InfinitivesWill vs Verb InfinitivesConditional TypesPresent Perfect SimplePossessive Adjective and PronounContrastive ConjunctionAdverb & Compound SentencesMiscellaneous Grammar UsagesOther quiz:
Grammar › ViewThe situation is difficult ______________.
A. for expain
B. explain
C. to explain
Grammar › View
Identify the active voice in the following sentences.
A. The cat chased the mouse.
B. The mouse was chased by the cat.
C. The mouse was being chased by the cat.
D. The mouse has been chased by the cat.