Answer:

They would pay attention to what their teachers said and explain to them. They would do all the tasks given to them. And they would do that by themself, not asking answer their friends or even strangers in the internet. If they dont understand something they'd ask their teacher to explain to them (If the teacher wont explain it to them what kind of teacher is that?).

Explanation:

That's clearly what diligent students do during an english lesson. If any of you that just pass by this page while reading this and notice that my answer lacks something, you can add suggestion in the comment :D