他总是在紧张的会议中讲个笑话来活跃气氛。

He always ___cracks ___a ___joke to lighten the mood during tense meetings.

晚餐后，我们会放松一下，边喝咖啡边讲几个笑话。

After dinner, we'll relax and ___crack ___a ___few ___jokes over coffee.

尽管压力很大，她还是成功地讲了个让所有人都发笑的笑话。

Despite the pressure, she managed to ___crack ___a ___joke that made everyone laugh.