他讲了个笑话让大家都笑了。

He ___cracked ___a ___joke to make everyone laugh.

她讲了个关于天气的笑话。

She ___cracked ___a ___joke about the weather.

在演示过程中，他讲了个笑话来缓解紧张气氛。

During the presentation, he ___cracked ___a ___joke to ease the tension.