CNN news 2010-11-20 加文本

1.There was gunfire in the towns where these riots happened, and people set fires at the entrances to these towns.

set fires纵火

例句：The police hasn't found out who set fire to the storehouse.
      警方还没查出是谁放火烧了仓库。

      Setting fire to the letter, he made her watch it burn.
      他点火烧那些信时让她看着那信燃烧。

2.I'm Ben Tinker, filling in for Carl, who's at an anti-bullying conference.

fill in代替; 暂时补缺

例句：He was called on to fill in in an emergency.
      他是在紧急情况下被召去临时补缺的。

      I'll find someone to fill in for you.
      我去找个人来顶替你。