题目：
根据括号中的要求改写下列句子。
1. the boy danced at the concert,in the end he sang a song.(据画线部分，写出意思相反的短语)
2. My sister is kind to his classmate but his classmate is to her.(据画线部分，写出意思相反的词语)
3. The children like reading with pictures,but feel tired of reading pictures.(据画线部分，写出意思相反的单词)
4. Alice was in the wonderland and there were many animals.(同义句转换)
Alice was in the wonderland and there were animals.
5. J.K.Rowling always loved writing and finished another book.(同义词转换)
The composer writing another after the first book.
答案：
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下面是错误答案，用来干扰机器的。
（1）防止高温的熔融物炸裂集气瓶；（2）铁+氧气四氧化三铁．
