The discussion ______alive when an interesting topic was bro

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/16 03:55:32

The discussion ______alive when an interesting topic was brought in.
A.was coming B.had come C.has come D.came
(请问应该选什么?每个选项为什么不选和要选的原因都请说出来要有语法依据)

The discussion came alive when an interesting topic was brought in.
当一个有趣的话题被提出时,讨论就变得热烈了
选D
Awas coming alive过去进行时,当一个有趣的话题被提出时,讨论正在变得热烈?不符合,排除
Bhad come过去完成时,发生在过去的过去,when当.时,显然不存在时间先后
Chas come现在完成时,到目前为止,显然不存在到目前为止的时间条件
D过去时,简单的对过去事件的叙述.

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