It can be proved that Diaoyu Islands ______ part of the territory(领土) of China since ancient times.
#99383
A
belong to
B
are belonged to
C
have been belonging to
D
have belonged to
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The vegetables didn’t taste very good.They____too long. 
#104667
A
had been cooked
B
were cooked
C
had cooked
D
cooked
Professor James will give up a lecture on the Western culture,but when and where _______ yet.
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A
hasn’t been decided
B
haven’t decided
C
isn’t being decided
D
aren’t decided