单项选择题

Mary is busy ______ for her final exam.

[A] preparing
B. prepare
C. prepared
D. prepares
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What is the date of this Sunday
[A] June 12th.
B. June 20th.
C. June 22th.
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What does the World Trade Center look like now
A. Completely damaged. B. A little damaged.
C. Stand still.
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