Some traffic accident cause damage to some people lose money and the most of important is losing life .they not only hurt their families .but also make many people are lost in disturbing .this is very difficult .Why why?Make traffic accident reason :

There are some traffic lights on the crossing road.画线；some traffic lights 划线部分提问 traffic traffic traffic traffic traffic traffic traffic traffic traffic Why were you late for class this morning?I was delayed by()a heavy traffic,heavy traffic,some heavy traffic,traffic being heavy.应该选哪个? In some big _____(city),the traffic is heavy different ,some ,in ,rules ,traffic ,are ,sodifferent ,some ,in ,rules ,traffic ,are ,some ,countries ,这是连词成句,但是不知道怎么写, why couldn't they catch the 6:30train?Because they were delayed by()some heavy traffics,any heavy traffic,a heavy traffic,heavy traffic选哪个? i was late for school because of___A.some heavy traffics B.any heavy traffic C.a heavy traffic D.heavy traffic traffic 是否可数 traffic是可数还是不可数名词 为什么我看过 some traffic 交通不是一类事物的统称吗求正解 This driver got ___(hurt)in the acciden We were delayed by ( ). 1.a heavy traffic 2.heavy traffic 3.some heavy traffic 4.traffic being heavy正确答案选择3.这题我看不懂.为什么选择3呢?