这个脱口秀演员的开场笑话让全场爆笑。

The stand-up comedian's opening ___gag made the whole audience burst into laughter.

为了防止人质呼救，绑匪用布条堵住了他的嘴。

The robber used a ___gag to stop the hostage from shouting.

难闻的气味让他剧烈干呕。

The foul odor made him ___gag violently.