12．根据所听短文的内容，在每小题给出的三个选项中，选出一个能完成句子的最佳答案，并将答题卡上对应题目所选的选项涂黑．短文听两遍．
16．Before the storm came，the weather was略．
A．warm B．cool C．hot
17．The wind blew some of the paper略．
A．onto the floor B．out of the door C．out of the window
18．They did not go out to see where the sound came from because略
A．it was too dark outside B．it was not safe outside C．the door would not open
19．The storm lasted略．
A．more than three hours B．exactly three hours C．less than three hours
20．Some garden shelves were broken because of略．
A．the strong wind B．the heavy rain C．a falling tree．
