Please stop talking. 請(qǐng)不要講話.
Listen carefully. 注意聽.
Please be quiet. 請(qǐng)安靜.
Please keep quiet. 請(qǐng)保持安靜.
Don't push others. 不要推其他人.
Please pay attention. 請(qǐng)注意.
You are too noisy, please stop. 你太吵了,請(qǐng)停止.
Please don't make noise. 不要吵.
Return to your seat. 回到你的座位上去.