单项选择题

No sooner had they got the goods covered up ______ it started raining hard.

[A] when
B. than
C. then
D. after
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The number of tigers in this area ______said to be______.
[A] is; rising
B. are; rising
C. is; raised
D. are; raised
单项选择题
What does the World Trade Center look like now
A. Completely damaged. B. A little damaged.
C. Stand still.
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