The boys had put out the campfire,The fire wasn't （）.A.on fire B _英语解答

The boys had put out the campfire,The fire wasn't （）.A.on fire B .alight ,为什么填B ,
俩个意思那么相近,

人气：495 ℃　时间：2019-11-23 08:24:44

解答

on fire 是adv（副词）用法.
alight 是 adj（形容词）用法.
原因就像是Baby is asleep/awake.一样
这算是语法,没听说过is后加单个副词（有时会用副词修饰形容词）