神马作文网新概念3第一课有点不明白
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/11 12:53:58
新概念3第一课有点不明白
The experts were now fully convinced that the animal was a puma,but where had it come from?这里为什么要用过去完成时 还有 come难道不要变成came?
As no pumas had been reported missing from any zoo in the country,this one must have been in the possession of a private collector and somehow managed to escape.这里为什么用过去完成时
The experts were now fully convinced that the animal was a puma,but where had it come from?这里为什么要用过去完成时 还有 come难道不要变成came?
As no pumas had been reported missing from any zoo in the country,this one must have been in the possession of a private collector and somehow managed to escape.这里为什么用过去完成时
come的过去分词是come
come came come
整篇文章的时态是过去时,讲述过去的一件事
用过去的过去的一个动作,表达过去的状态,自然史过去完成时啊
come came come
整篇文章的时态是过去时,讲述过去的一件事
用过去的过去的一个动作,表达过去的状态,自然史过去完成时啊