What kind of planet might NOT support life？
A. Most of the planets of the stars.
B. Stars similar to our sun.
C. Planets similar to the earth.
D. Planets with proper conditions.
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What eventually happened to the empire in the paragraph？
A. Its people died of hunger.
B. It fell to pieces.
C. It became a giant empire.
D. It built many ships with wood.
Man cannot exist without water．
A expand B rise
C live D quit
Alaska was originally part of Russia, but was bought _______.
A. as fish does
B. because of its rich natural resources
C. by the United States in the 19th century
D. shines day and night
E. only a very small percentage
F. a limited amount of the gold found there.
The Foreign Service is a branch of the Department of State．
A center B division
C root D base
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