(2013·湖南,26)If nothing________,the oceans will turn into fish deserts.
#99736
A
does
B
had been done
C
will do
D
is done
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She won the first prize;though none of us   it.
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A
expected
B
had expected
C
was expected
D
would expect
—Flight CA 581_____________. I must be off now.   —Have a nice trip.
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A
is being announced
B
has announced
C
was announcing
D
will be announced