After a dozen years as Arkansas' governor, he decided toPresident even though President George Bush's re-election was considered virtually certain. ( )
A. run for
B. run out
C. run into
D. run as
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Many vehicles a GPS. ( )
A. power up
B. are equipped with
C. are made of
D. are endowed with
Much land as farmers moved into cities looking for new lives. ( )
A. abandon
B. abandons
C. was abandoned
D. had abandoned
This experiment is designed to test whether monkeys are able to tools. ( )
A. make use of
B. make usage of
C. be made of
D. be made from
The new cultural center could _________________ a window for foreigners to learn more about China. ( )
A. serve
B. serve as
C. serving
D. serve to
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