他用指关节快速敲了两下桌子。

He gave the table two quick ___raps with his knuckles.

他每天晚上都在地下室练习说唱。

He ___raps in the basement every night to practice his skills.

老师严厉批评了那些没完成作业的学生。

The teacher ___scolded the students who didn't finish their homework.