after the exam is finished but sometimes its cleaned after the end of all the exams
yes
They where my slaves they cleaned rooms, toilets, and condoms
There are no special health and safety arrangements for school rooms in which students take examinations.
A hamster cage should be cleaned weekly.
It has to be cleaned every so often, mainly if you can see that it is dirty than you should clean it. And it really should be cleaned every 4-5 weeks.
A horses stall should be cleaned every day.
It must be cleaned daily.
Take the dog to the vet for a dental exam. He probably needs his teeth cleaned.
This trim kit is fairly resistant to average scuff marks and should not have to be cleaned exceedingly often.
The best way to teach children how to tidy up in their rooms is to deny them something they really want until they have cleaned up in their own bedrooms.
Draperies should generally be cleaned one or two times a year.
Whenever necessary. Often they're cleaned on Friday early afternoon and on Saturday night.