题目：What does the librarian imply when she tells the man to return at nine o’clock？A．She will
What does the librarian imply when she tells the man to return at nine o’clock？
A．She will see the man after work.
B．The library probably closes at eleven.
C．She is too busy to help the man now.
D．Her supervisor will be there at that time.
Because reserve materials can be checked out two hours before the library closes, and the librarian tells the man to come back at nine o'clock, she implies that the library will close two hours later, or eleven o'clock.
