We were delayed by ( ). 1.a heavy traffic 2.heavy traffic 3.

We were delayed by ( ). 1.a heavy traffic 2.heavy traffic 3. they were delayed by heavy traffic 关于非谓语动词做状语1.Having been delayed by heavy traffic,she found i heavy traffic Having been delayed by heavy traffic,（ ）it impossible to arr what heavy traffic还是what a heavy traffic 关于非谓语分词的用分词改写下列句子:1.We were delayed by heavy trucks which we heavy traffic 的反义词 traffic ---Look Such heavy traffic the heavy traffic是什么意思 heavy traffic是什么意思 heavy traffic前面可以加a吗