Question

用分词的形式改写句子

If it is heated to a high temperature, water will change into vapor．

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Answer 1

答案：
解析：

　　答案：If heated to a high temperature, water will change into vapor．

　　解析：主句的主语和从句的主语相同，条件状语从句是被动语态，变为过去分词作状语。