按括号中的要求完成句子，每个空格填一个单词。
【小题1】The tourists are on the beach. (改为否定句)
The tourists are not How long on the beach.
【小题2】I have waited for the bus for twenty minutes. (就句子划线部分提问)
when; held concentrate on have you waited for the bus?
【小题3】“When do you hold your school art exhibition?” the reporter asked me. (改写句子，句意不变)
The reporter asked me be improved we our school art exhibition.
【小题4】You should put your heart into the test and shouldn’t think about anything else when you prepare for it. (改写句子，句意不变)
You should the test when you prepare for it.
【小题5】Teenagers should read more books to improve their reading skills. (改写句子，句意不变)
Teenagers’ reading skills can if they read more books.
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解析：
【小题1】含有be动词are的句子改为否定句在are后直接加not，故本题空格处填are not。
【小题2】对时间长度提问的用疑问短语多长How long。
【小题3】疑问句构成宾语从句，将疑问词when写在前，后跟陈述句的顺序，主句为过去时，所以从句也用过去时，从句谓语动词应该用过去式held，故本题空格处填when; held。
【小题4】本题所表示的含义为在你为考试做准备时，你应该全神关注于测试，concentrate on表示此意，故本题空格处填concentrate on。
【小题5】本句的含义为如果青少年读更多的书，他们的阅读技能能够被提高，根据句意主句应该使用被动句，结构为be+提高的过去分词improved，故本题空格处填be improved。