老师的严厉目光让吵闹的教室立刻安静下来。

The teacher's stern look ___silenced the noisy classroom instantly.

抗议者们被警察强行制止发声。

The protesters were forcibly ___silenced by the police.

他用消音手枪在射击场练习，几乎听不到枪声。

He practiced at the shooting range with a ___silenced pistol, barely making any noise.