问题描述：
选择填空：—Millie,where is Miss Li?—She __________ a
选择填空：
—Millie,where is Miss Li?
—She __________ a speech on Chinese art to the first–year students in the hall.
选择填空：
—Millie,where is Miss Li?
—She __________ a speech on Chinese art to the first–year students in the hall.
问题解答：
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