A．You will find the full name of people listed in the white pages of U.S. telephone books.B．Both small and large area have their own area codes in the U.S.C．Payment for the wrongly dialed number is not necessary if you tell the operator about what happened.D．The telephone services in the U.S. are convenient.
A．You will find the full name of people listed in the white pages of U.S. telephone books.
B．Both small and large area have their own area codes in the U.S.
C．Payment for the wrongly dialed number is not necessary if you tell the operator about what happened.
D．The telephone services in the U.S. are convenient.