1.Keepquiet,please!请保持安静!2.youshouldreturnthebookontime.你应该按时把借的图书还给图书馆.3.Youshouldputthebookbackontherightshelfwhenyoufinishit.当你看完的时候,你应该放回正确的书架上.4.Takecareofthebook.要爱护书籍.5.Don'tdraworwriteanythingonthepage.不要在书上乱涂乱画.Bequiet.Don'ttalktooloud.Nobag(Don'tbringyourbagin).Nosmoking.Nodrinking.Don'truninthelibrary.^_^
采纳哦