In April students remained stuck due to the volcanic ash could .为啥不能用to have stuck
问题描述：
In April students remained stuck due to the volcanic ash could .为啥不能用to have stuck
答
remain 后接过去分词结构表处于一种状态,
remain后接不定式,表 尚待’表未完成的事.
例如; it remains to be seen that.
这里被困是一种状态, 而非将发生的事,且是被动,所以用过去分词,主动才用ing分词.
所以填stuck.