teachers are worried about the fact that new students aren't easy to deal with 是什么从句
问题描述：
teachers are worried about the fact that new students aren't easy to deal with 是什么从句
答
是同位语从句。that引导定语从句时，在从句中一般作主语或宾语(指物时还可以用which代替)，并且作宾语时常常省略；that在同位语从句中仅起连接作用，不充当任何成分，且不能省略，也不能用which来代替。此句中that不能省略，故为同位语从句。
答
定语从句
答
that new students aren't easy to deal with 是一个同位语从句,修饰先行词fact.
答
同位语从句