A、  B、  C、  C本句是陈述图书馆在午夜关门这一客观事实的陈述句。

Where is the bus station?
(A)On Lincoln Street.
(B)Did you stay late?
(C)From the stationery store.

The library closes at midnight.
(A)He was an hour late today.
(B)It’s close to the downtown area.
(C)Thanks for the reminder.