Gary Locke , a Chinese-American, once______ as the governor of Washington for 8 years and now is U.S. Commerce Secretary．
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A
had worked
B
worked
C
is working
D
has been working
推荐题目
With the development of high technology, more and more new things ______ in the past years.
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A
discovered
B
have discovered
C
had been discovered
D
have been discovered
(2013·南京金陵中学模拟)I failed again，but my parents encouraged me and told me that failure________the mother of success.
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A
was
B
is
C
be
D
been
The warning of the storm, ______ over the radio and on TV, spread quickly through the province.
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A
broadcasting
B
having broadcast
C
broadcast
D
to be broadcast