1.Keep
quiet，please!
请保持安静！
2.you
should
return
the
book
on
time.
你应该按时把借的图书还给图书馆。
3.You
should
put
the
book
back
on
the
right
shelf
when
you
finish
it.
当你看完的时候，你应该放回正确的书架上。
4.Take
care
of
the
book.
要爱护书籍。
5.Don't
draw
or
write
anything
on
the
page.
不要在书上乱涂乱画。
