We usually set a music sound for our phone.When it rings you，you get the phone and have a chat.But although you probably use it all the time，have you ever thought about the manners on the phone？If you haven't，here are some tips.
    Always give the person you are calling plenty of time to go to the phone.
    Try not to call too early in the morning（before about 9 o'clock） or too late at night（after a- bout 9：30）.Also try not to call at mealtimes.
    Mobile phones must be turned off as soon as the plane doors are closed.
    When greeting someone，do not talk on the phone.
    When in a restaurant with your friends，keep phone conversations short.Practise speaking in a low voice.If no one looks your way，you've got it.
    Put your phone on"off" or "vibrate" before you enter a concert or a cinema.If you forget both"off"and"vibrate" and your phone ring，don't answer it，turn it off straight away.
    Finally，when you are having a meeting，don't let it ring.

（1）Where do we have to turn off the phone？

D

D

A.In a restaurant.
B.At a concert.
C.In a cinema.
D.On the plane.
（2）What does the underlined word"vibrate" mean？

D

D

A.關(guān)機(jī).
B.靜音.
C.響鈴.
D.振動(dòng).
（3）We may infer from the passage that

A

A

.
A.some people probably don't pay much attention to telephone manners
B.you can never call back if the person you are calling is not in
C.calling people too early in the morning is polite
D.almost everyone has got a mobile phone
（4）What's the best title for this passage？

B

B

A.How to Use the Phone.
B.The Manners of Talking on the Phone.
C.Suggestion on Using the phone.
D.Phone Music.