单项选择题

Between 1975 and 1996, the number of overseas visitors expanded（）27% on average each year.

A．in
B．by
C．for
D．to

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单项选择题
It will take you one hour and fifty minutes（）the top of Mount Tai.

A．reaching
B．to reach
C．being reached
D．having been reached
单项选择题
（）the news, Ida changed her plans.

A．In hearing
B．To hear
C．Of hearing
D．On bearing
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