[ Grammar ]
The moon ____ the planet every 27 days.
A. manned
B. orbits
C. colonizes
D. spacecraft
Select your answer:
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Tenses › ViewThere ____ economies since the beginning of civilization, but as a field of study, economics ____ only recently.
A. have been / develops
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Verb Tenses › View
My cat __________ eighteen years before passing away last month.
A. Lives
B. Lived
C. Live