听力原文:M: Do you know Joe Brown's number?W: No, but you can look it up in the telephone
听力原文:M: Do you know Joe Brown's number?
W: No, but you can look it up in the telephone book.
How can the man find Mr. Brown's phone number?
A.By referring to the receptionist.
B.By calling the telephone operator.
C.By asking his friend.
D.By finding it in the phone book.