基本信息
第一节 完形填空(共10小题；每小题2分，满分20分)
阅读下面短文，掌握其大意，然后从21—30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Harold Smith and George Price glanced down Clay Street as they traveled Calhoun Street. They noticed what they described as a plume (缕) of smoke and turned around to check on it. They found it beginning to stream from a house and jumped into __21__.
