单项选择题

In fine days, you'd better open windows to ventilate the room.

A. sweep
B. air
C. clean
D. wash
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We will meet in the office at approximately 3:30 in the afternoon.
A. about
B. almost
C. probably
D. rarely
单项选择题
You will be eligible to vote next year.
A. competent
B. possible
C. enough
D. allowed
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