| 1 | It is prohibited to make noise at the entrance of the school. | |
| 2 | Loud noise in public places is not allowed. | |
| 3 | The boys stopped their clatter when the teacher came into the classroom. | |
| 4 | People are warned not to make loud noise in public places. | |
| 5 | Loudly shouting in public is not a polite behavior. |
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