CNN news 2009-10-12 加文本

1.Pakistani commando stormed the building at the army’s national headquarters, freeing 39 hostages.

freeing是现在分词作结果状语

2.Two of the militants who have taken those hostages were killed along with three hostages, two other militants blew themselves up and one was captured.

along with除...以外(还)

例句：Tobacco is taxed in most countries, along with alcohol.
      除酒以外, 烟草在多数国家都要征税。

3.Iraqi interior officials say two car bombs were set off outside police headquarters in the city of Ramadi, which is west of Baghdad.

set off出发, 动身

例句：He proposed to set off immediately.
      他建议立即动身。

(使)开始; 引起

例句：She had stopped crying but his shouting set her off again.
      她已经不哭了, 但是他的大声喊叫使她又哭了起来。

      If uncontrolled, the shortage would set off a new rise in meat prices.
      如果不加控制, 这种短缺会引起肉价再次上涨。

      That set all of them off laughing again.
      那又惹得他们哄堂大笑。

点燃, 爆炸

例句：Be careful that you don't set the fireworks off by mistake.
      当心点, 别弄错了引起那些爆竹爆炸。

      The children are setting fireworks off in the garden.
      孩子们在花园里燃放烟火。

4.In Idaho, a deadly crash involving a bus-load of high school band members, the bus veered off and crashed, injured 15 in Idoho.

veer off偏离航向；偏离规定方向