[ Progressive Perfect and Simple Verb Tenses ]
What are the helping verbs for present progressive?
A. Was/when
B. Is/has
C. Had/has
D. Is/are
Select your answer:
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Tenses › ViewWhile we ______ the caves, we came across ancient cave paintings.
A. would explore
B. had explored
C. were exploring
D. explored
Grammar › View
Marina __________ never late for work.
A. Am
B. Are
C. Were
D. Is