填空题

• A．Produce your student card or identity card when borrowing books. Borrow only two books at a time.
• B．Do not move the desks or chairs about. Close the windows when leaving.
• C．Protect public property. Do not scribble on the pages of books or tear them out. Pay the cost price for any damage done.
• D．Keep quiet and pay attention to cleanliness.
• E．Do not talk or laugh loudly; do not smoke or drink tea; do not litter the floor with waste paper.
• F．Spit only in the places designated.
• G．Let the readers and librarians help each other and jointly run the reading room well.
• H．Read and study seriously and be concerned about world affairs.

( )保持室内安静，注意清洁卫生。