Why were you late for class this morning?I was delayed by()heavy traffic的什么形式?
网友回答
回答：heavy traffic 是名词短语,意为“拥挤的交通”,在此作delay动作执行者.
此句改为主动语态为：
Why were you late for class this morning?The heavy traffic delayed me.
======以下答案可供参考======
供参考答案1:
heavy traffic就是：形容词+名词的结构
意思是：交通堵塞
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供参考答案2:
可以加冠词the,交通是抽象的，不可数没有复数