单项选择题

Astronomers believe that matter in different parts of the universe()

A. obeys different laws.
B. obeys one common law.
C. obeys the same laws.
D. obeys no common law.

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She stood there trembling with fear.
A. jumping
B. crying
C. swaying
D. shaking
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She's one of the smartest students in the whole school.()

A. most beautiful
B. cleverest
C. cunning
D. hardest
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