The silence was suddently broken when a large car,with its head lights on and horn blaring .
问题描述：
The silence was suddently broken when a large car,with its head lights on and horn blaring .
问一下这里的blare为什么是ing呢
答
with +宾语+介词/分词 结构,表示伴随的情况.
说明horn正在 blaring ,这是说明正在嘟嘟响,与逻辑主语horn是主谓关系.