tolong dijawab semuanya

1. Please knock on the door before entering the room
2. Please check your property before leaving the library
3. Don't forget to lock your bicycle before entering the class
4. Please wear your protector eye and robe during the experiment
5. Sorry, picking flower is prohibited unless you have permission

1.Please knock the door before the room on entering
2.please check the library before your leaving property
3.don't forget to lock the class before bicycle entering
4. ...
5. ...

Maaf ya kak saya hanya bisa menjawab 3 maaf kalo salah Dan semoga membantu:3