Good teachers such as Mr.Chen----always kind to students.用is

Good teachers such as Mr.Chen_are__always kind to students.
因为主语是【Good teachers】
所以用复数
有不会的可以再问我
再问： 你确定吗？ 主语没变？
再答： 确定啊 such as后面的是修饰成分，可以不看 主干就是Good teachers are always kind to students.