选词填空（共7小题；每小题1分，满分7分）
阅读下面短文，用所给单词的恰当形式填空，使短文通顺、合理。每词限用一次，有一个多余的选项，答案请填写在答题卡相应的位置上。

information   find   if   million   serve   try   whether   power

 
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