单项选择题

All the people in the stadium cheered up when they saw hundreds of colorful balloons ______ slowly in to the sky.

A．ascending
B．elevating
C．escalating
D．lingering
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单项选择题
The hours ______ the children spend in their one-way relationship with television people undoubtedly affect their relationships with real-life people.
A．when
B．on which
C．that
D．in which
单项选择题
______ in a recent science competition, the three students were awarded scholarships totaling $ 21,000.
A．To be judged the best
B．Having judged the best
C．Judged the best
D．Judging the best
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