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What is the time required for the Earth to return to a given orbit with reference to a fixed solar star?

A. Lunar year
B. Solar year
C. Tropical year
D. Sidereal year

We bought _____ plastic spoons and forks for the party.

A. a

B. an

C. any

D. some

I don’t know where your socks are. They _____ in the drawer.

A. might be

B. will be

C. will probably be

Astronomers study the planets ___ our solar system.
a. among
b. below
c. in