来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/09 17:49:20
高一英语语法填空题,英语强的进来看看
Amber has a beautiful yellow-brown colour.Although it feels as hard as stone,it easily melts when____(heat).
heated
再问： 不是应该是when it is heater
再答： heat,加热，动词，然后再这个句子中，应该是when it is heated ,可以把it is 省略，因为是同一个主语，所以就成了 when heated
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