Topics: Vocabulary and Grammar
. How do the photographs provided by the author support the purpose?
A. by showing what ancient people might have seen in the sky
B. by explaining how comets are formed
C. by demonstrating why people should be scared of comets
D. by providing clues to the contents of a comet
Select your answer:
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Vocabulary › ViewActivities aimed at weakening an established government.
A. sedition
B. reserved powers
C. republic
D. proportional
Grammar › View
The Moon, _______is Earth’s natural satellite, orbits around our planet.
A. where
B. which
C. who
D. that