[ Vocabulary ]
A model of the solar system that has the sun as the center is called a _______ model.
A. Geocentric
B. Aquacentric
C. Heliocentric
D. Rockcentric

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Modal Verbs › ViewWhen you visit countries with completely different cultures, make sure you know what you can and … do.
A. don’t have to
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“Why is ___________ so angry with you?” asked Siew Lan.
A. we
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A. have left
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Grammar › View
The windows are in __________ frames.
A. circular huge wooden
B. huge wooden circular
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