题目内容：

You may never be in an emergency situation. But if it happens, you should know how to get help. The telephone book in the United States has emergency numbers on the inside front cover. Look at the following table from the Boston telephone book. Notice that the numbers for the police and the fire department (部门) are the same. And it is an easy number to remember. If you are too unhappy or excited to remember any numbers at all, you can simply dial (拨打) “0” for an operator (接线员) in any emergency.

EMERGENCY NUMBERS
FIRE  BOSTON      911 CAMBRIDGE  876-5800 SOMERVILLE  023-1500 Other Places _________ Write in your number here	POLICE BOSTON      911  CAMBRIDGE  846-1212 SOMERVILLE  645-1212 Other Places _________ Write in your number here	DOCTOR BOSTON     482-5252 CAMBRIDGE   856-3585 SOMERVILLE  025-4774 Other Places ________ Write in your number here
★ COAST GUARD  223-6978 OR DIAL “0” (OPERATIOR) IN ANY EMERGENCY WE ARE ALWAYS THERE AND READY TO HELP!

1.If you see a fire in Cambridge, you should dial _________.

A．023-1500  B．846-1212

C．645-1212    D．876-5800

2. If you dial “0”, ________ will answer your call.

A．the police           B．the doctor

C．the operator        D．the fire department

3. This passage is most probably taken from _________.

A．a sports magazine              B．an emergency leaflet

C．a TV guide                     D．a telephone book