Hotlines have become common in China．Some radio broadcasting stations use hotlines to encourage the listeners to take part in the talk shows．

  That’s a good idea．Yet，the fact is that some people do nothing but break the whole program．

  Some people know little about the topic under discussion．Sometimes they do not even know what the host(主持人)is talking about．So the host has to tell the caller what the show is about．Usually the caller will ask a few questions which express his hope and show his ignorance(無知)．Then the host has to answer and explain-how silly this is! It wastes a lot of time．

  It seems that some people phone the hotlines for fun．They just want to let the listeners hear them．They don’t care what the topic is，whether they themselves are interested in it or how silly they appear to be．

  I'm totally bored by those people．It’s necessary for the stations to improve the hotline programs. In my opinion，if a caller doesn’t know what is going on，the operator(接線員) should not let the caller take part in it．

1．The host has to answer and explain，        ．

  A．for the host works hard

  B．because the caller doesn’t know what the show is about

  C．for the host likes talking to the callers

  D．because it’s a talk show

 2.The passage doesn’t tell us the idea that some listeners        ．

  A．phone the hotlines for fun

  B．just want to be heard by others

  C. who don’t care what the topic is must realize that they appear silly

  D．can take part in the hotline programs

3．The word “it” in the last paragraph refers to       ．

  A．the host       B．the listener

C．the station    D．the hotline program