完形填空: 阅读下面短文, 理解大意, 然后从各小题的四个选项中选出一个最佳答案, 使短文连贯完整. In China, some radio stations use hotlines(热线). It's used for __1__ the listeners to take part in the talk shows. That's a good __2__. Yet, the fact is some people do nothing but break the whole program. Some people know little about the topic under __3__. Sometimes they do not even know what the host is talking about. So the host has to __4__ the caller what the show is about. Usually the caller will __5__ a few questions which express his hope and show his ignorance(无知). Then the host has to answer and explain how silly this is! It __6__ a lot of time. It seems that some people phone the hotlines in fun. They __7__ want to let the listeners hear them. They don't care what the topic is and __8__ they themselves are interested in the topic or not. Silly they appear to be. It's __9__ for radio stations to improve the hotline programs. If a caller doesn't know what is going __10__, the operator should not let the caller take part in it.

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完形填空

　　In China,some radio stations use hotlines(热线)．It's used for 　　1　　 the listeners to take part in the talk shows．

　　That's a good 　　2　　．Yet,the fact is some people do nothing but break the whole program．Some people know little about the topic under 　　3　　．Sometimes they do not even know what the host is talking about．So the host has to 　　4　　 the caller what the show is about．Usually the caller will 　　5　　 a few questions which express his hope and show his ignorance (无知)．Then the host has to answer and explain how silly this is! It 　　6　　 a lot of time．

　　It seems that some people phone the hotlines in fun．They 　　7　　 want to let the listeners hear them．They don't care what the topic is and 　　8　　 they are interested in the topic or not．

　　It's 　　9　　 for radio stations to improve the hotline program．If a caller doesn't know what is going 　　10　　,the operater should not let the caller take part in the talking．

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