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完形填空。

　　Most students like 　　1　　 computers．It is very 　　2　　．By 　　3　　 computers, they can learn a lot and know many things about their country and the 　　4　　．Of course, they 　　5　　 learn over(通过)the radio．But they like to use computers better．Why? 　　6　　 they can hear and watch at the same time．But they can't see anything over the radio．

　　Computer helps to open students' eyes．And it can open their minds(智力), too．They know the world better．

　　Many students go online only 　　7　　 the weekend．They are always busy with their 　　8　　．But a few students 　　9　　 online every night．They go to bed very late．They can't have a good rest．That's bad 　　10　　 them．

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仔细阅读下列短文, 根据题目, 选出最佳选项. A rich man called Stuart Laidlaw had been counting his money. When he finished, he left by chance a US \$1,000 on his desk. But when he returned for it a short while later, it was gone. So he called the police. Mr. Laidlaw told Inspector Bright only another two people could have seen the bill. One was the cook; the other was the gardener. The cook said that she had hidden it for safekeeping under a green book on the desk. But when they looked, the bill was not there. The gardener said he had found the bill where the cook had left it. He had placed it inside the book, where he thought there was less chance that somebody would find it. He had written down the page numbers so that he would not forget them. "The bill was between pages 45 and 46," he said. But when they looked, there was no money in the book! But Inspector Bright was sure who had taken the money. Who was it, and how did he know

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