QUIZ START
#1. Has the pigeon been _______ nonstop for six months?
#2. It hasn't ______ raining for very long.
#3. Have you been preparing the assignment _______ two hours?
#4. We _______ shopping at this fair for two hours.
#5. Have they been revolting ______ 1978?
#6. My mom ______ cooking for three hours.
#7. I've not been ______ enough vegetables these days.
#8. _______ we been wandering since yesterday?
#9. _____ Has been traveling around the world for a month.
#10. My boss _______ coming into the office regularly.
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