Mr. Smith gradually _____ a knowledge of the subject.
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A
attained
B
achieved
C
required
D
acquired
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Unless ______ , we’ll have to shut down some branch companies for lack of money.
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A
discussed
B
financed
C
encouraged
D
renamed
To keep the air clean, this hospital _____ all the patients ____ in and around it.
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A
allows; smoking
B
forbids; to smoke
C
prevents; smoke
D
prohibits; smoke
In recent years, laws have been passed to stop wild animals from _______.
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A
killing
B
to be killed
C
being killed
D
having killed
While he has got high marks in the college entrance examination, he thinks that it is ______________ satisfactory.
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A
out of
B
due to
C
far from
D
free from