It was said that an accident had happened and the traffic ___(hold) up.was holding不可以吗？
问题描述：
It was said that an accident had happened and the traffic ___(hold) up.
was holding不可以吗？
答
不可以
and左右动词形态和时态必须一致
所以是 had been held
答
你见过什么ACCIDENT是持续发生的。。。。
答
had been held
不可说was holding,因为hold up 和traffic的关系是动宾关系
答
had been held